HFIGLOBALThe magazine of Salzgitter Mannesmann Line Pipe for customers and partners

Cover topic

The new Formula 1 race track in Abu Dhabi.Salzgitter and the DTM.

Issue 02 · February 2009

Germany20,000 pipes for an ethylene pipeline acrosssouthern Germany Page 10

TechnologyNew pipe end design andMAPUR® make trenchlesspipe-laying easier Page 22

AustriaSt. Pölten goes for (district) heat from biomass Page 20

EDITORIAL

Dear Reader,

What has Salzgitter Mannesmann LinePipe got to do with motor sport? This isthe question we’re investigating in our titlestory. Answers are supplied by the articleson the new Formula 1 race circuit in AbuDhabi and Salzgitter AG’s involvement inthe DTM, the German Touring Car Cham-pionship.

While Abu Dhabi is another fine ex-ample of an exciting international project,the present issue shows that it is alsoworthwhile reporting on projects thathave taken place on our doorstep, so tospeak. 360 km long and stretching rightacross southern Germany, the Ethylene

Pipeline South is undoubtedly exceptional,as impressively underlined by the em-ployees responsible, Konrad Thannbichlerand Stephan Maier, in their interview.

We are presenting another extraordinaryproject in our report on a district heatingpipeline in Lower Austria. Here, heat in St. Pölten is being provided by biomassincineration in a new plant.

The controlled use of fire not only yieldsheat, but has also been the basic require-ment for the evolution of a variety of weld-ing processes. In our history section, wetrace developments from hammer weldingthrough to the high-tech HFI weld.

The ongoing development of SalzgitterMannesmann Line Pipe as a systemssupplier is the subject of the articles onour new product MAPUR® and on the optimization of our project management.

Last but not least, it gives me greatpleasure to report some news that hasn’tbeen explicitly mentioned in an article ofits own. Marc Rasquin became a memberof the Management Board of Mannes-mannröhren-Werke GmbH on 1 July2008. Along with his position as CEO ofSalzgitter Mannesmann Line Pipe, he isalso responsible for the HFI-Welded Pipedivision.

Enjoy your read!

Jörg Hernando, Sales Director, Fully Authorized Officer

Manager Water Line Pipe and Commercial Pipes

2 HFI GLOBAL · 02/2009

HFI GLOBAL · 02/2009 3

04

10

18

22

08

16

20

24

Cover topic

04 The new Formula 1 race track in Abu Dhabi

08 Salzgitter and the DTM

Projects

10 EPS – 20,000 pipes for southern Germany

14 EPS – Interview with K. Thannbichler and S. Maier

20 District heating project in Lower Austria

In-house news

16 Project management at

Salzgitter Mannesmann Line Pipe

Sales partner

18 Salzgitter Mannesmann Stahlhandel GmbH

Technology

22 Product innovation for trenchless pipe-laying

History

24 From fire welding to HFI high-tech weld

Contents

4 HFI GLOBAL · 02/2009

New speed record before the first race

When the first Formula 1 race takes place in Abu Dhabi in November 2009, yet anothergigantic building project with utopian features will have been realized at lightning pace.And involved from the outset are tubes from Salzgitter Mannesmann Line Pipe.

Cover story

4 HFI GLOBAL · 02/2009

HFI GLOBAL · 02/2009 5HFI GLOBAL · 02/2009 5

he countdown is on. Because sincethe finalization of the contracts bythe Chairman of Formula 1 Manage-

ment, Bernie Ecclestone, and Khaldoon AlMubarak, Chairman of the Abu Dhabi Ex-ecutive Affairs Authority, preparations andconstruction of the race circuit have beenproceeding at breakneck speed. In view ofthe extremely short project term of twoand a half years, what is true of Formula 1itself applies very much to the constructionof the new circuit: Every second counts.

And just as one has come to expectof building projects in the United ArabEmirates, it is a question not merely of arace track, but also of the re-design of anentire island. So it’s hardly surprising thatthe original route design was completelyoverhauled in mid-2008 by Philippe Gurd-jian, the new CEO of Abu Dhabi MotorSport Management.

The Yas Marina Circuit, as the new circuitis officially called, is a successful compro-mise that will delight drivers, TV viewersand trackside fans alike. Firstly, the coursehas a challenging layout with its 20bends, long straights and a top speed of320 km/h, ensuring race thrills and spec-tacular overtaking manoeuvres. And italso has a special appeal to spectators at the track, as the course, much like inMonte Carlo, is partially embedded in thenew cityscape under construction. Stun-ning are not only the new marina, FerrariWorld in the midst of the race action anda hotel that straddles the track, but alsothe grandstand structures offering nothingbut covered spectator seating. This willbe joined by the 60 metre tall, panoramicSun Tower that will give VIPs a uniqueview of the entire race action.

Philippe Gurdjian, ADMM CEO, and Bernie Ecclestonein front of the model of the Yas Marina Circuit

T

»A Formula 1 Grand Prix is one of the world’s

most prestigious sports events, in the same

category as the Olympic Games or a World Cup.«

Sheikh Mohammed bin Zayed Al Nahyan,

Crown Prince of Abu Dhabi

6 HFI GLOBAL · 02/2009

tecture, while adopting a modern formallanguage, pays tribute to the cultural set-ting. Successful examples of this are thegrandstand roofs and buildings along thetrack reminiscent of Bedouin tents. Newareas have also been earmarked for regen-eration of the island’s to some extentdwindling mangrove belt.

Expertise for the entire trackSalzgitter Mannesmann Line Pipe is makingits expertise available all around the track.Steel tubes have been produced not onlyfor the grandstands and the innovative

grandstand roof structures, but also for thefaçade construction of the Sun Tower, thepit and support pit buildings and for themast structures carrying the 700-kilo flood-lights that will illuminate the track at night.

A total of about 2,000 metric tonnesof thick-walled tubes with outer diametersranging from 219 to 610 mm have beensupplied. From the production plants inHamm and Siegen, the tubes went to astockist and from there to a steel fabric-ator in Germany, where they were cut tothe precise lengths and angles and insome cases precoated, before beingshipped to their destination.

Building work at lightning paceSo that the circuit and the entire infrastruc-ture will be ready in time for the start ofrace action in November, thousands ofconstruction workers have now been with-drawn from other sites. Which means we can expect a speed record to be setbefore the first race – for the constructionof the new race circuit itself.

Project planning that respects the cultureThe project is being planned by ALDARProperties PJSC, the leading real estatedevelopment company in Abu Dhabi. TheYas Marina Circuit is part of the develop-ment of Yas Island as a whole. Like otherconstruction projects in the United ArabEmirates, the task involves creating a totally new residential and leisure environ-ment. Along with the new race circuit,which has become a permanent fixtureon the Formula 1 race calendar for an initial seven years, a total area of about25,000 km² will be developed. In additionto hotels, upmarket sports and leisure facilities, an aquatic park and luxury prop-erties, there will be a Warner BrothersFun Park and roughly 350,000 m² of busi-ness and retail space. Notwithstanding all the unique features of the design, theproject managers have also committedthemselves to preserving the emirate’scultural and natural heritage. There aretherefore no skyscrapers, and the archi-

»I'm very proud that Abu Dhabi can present one of the most sophisticatedFormula One race tracks in the world. A hotel which spans the track, a marinawith a beautiful yacht club, and withgrandstands which are 100% completelycovered – this has never been seen before.«

Philippe Gurdjian, CEO Abu Dhabi Motor Sport Management

Shots from the constructionsite: Salzgitter MannesmannLine Pipe supplied about 2,000tons of tubes for the stands,stand roofs, the façade of the60 m tall Sun Tower, pit andsupport pit buildings and forthe mast structures of thefloodlight system.

Left: Simulated picture of the grandstands. Allseating is covered andensures a spectacularview of the race course.Right: From the 60-metrehigh Sun Tower VIPs willenjoy a superb panoramicview of the race course.

HFI GLOBAL · 02/2009 7

Yas Marina Circuit data

Abu Dhabi Grand Prix

The Abu Dhabi Grand Prix will be a per-

manent fixture on the Formula 1 race cal-

endar for an initial seven years as of No-

vember 2009. The circuit, still undergoing

construction, is similar in design to the

Monaco harbour course which makes use

of public roads. The circuit, whose original

plans were overhauled in 2008, also has a

section resembling the Eau Rouge of the

Spa-Francochamps track.

1st Formula 1 race: 1st November 2009Track length: 5.52 kmRace length: 309.12 km (56 laps)Top speed: Roughly 320 km/h

Top: Simulation of the marina with

the grandstand roof structure reminiscent

of a Bedouin tent Right: Crown PrinceSheikh Mohammed

bin Zayed Al Nahyanamidst prominent Formula 1 drivers

8 HFI GLOBAL · 02/2009

Passion and the will to win

A deep purr comes from the 4-litre V8 engines. At the start signal, the drivers open the throttle and accelerate away, and 460 hp leave a deafening noise and the smell ofexhaust gases and burning rubber behind. Exactly the right mixture to give DTM fansgoosebumps. And in 2009, Mercedes AMG und Salzgitter AG driver Jamie Green willagain be in the thick of it.

Cover story

HFI GLOBAL · 02/2009 9

»I have high hopes that I canwin the championship in aSalzgitter car.«

Anyone who experiences the excitementin the pits at first hand and breathes in theair of the DTM will not forget the GermanTouring Car Championship in a hurry. Theproximity of the star drivers, the authenticracing car atmosphere and the unique mixof qualifying, support programme, warm-upand the race itself all combine to ensureever greater numbers of spectators. Withthis perfect blend of spectacle, event andsport, the organisers have succeeded inattracting other stars from the world ofshow business to the racetracks. And totop it all there are the races and the un-surpassed tension of the battle for theChampionship. In 2008, this was againdecided only at the final event, in Hocken-heim. No wonder the German Touring CarChampionship, as it has been known since2000, has become Europe’s most populartouring car series.

Since 2005, Salzgitter AG has also takenan active interest in motor racing. "Busi-ness and motorsport both operate on thesame basic principles – passion, the willto win, readiness to work hard, fairnessand team spirit are crucial factors" saysBernd Gernsdorff, Group CommunicationsManager, explaining the company’s in-volvement.

After Norbert Haug, head of Mercedesmotorsport, brought Jamie Green into theHWA-Mercedes works team in 2006, thetalented newcomer has been the "worksdriver" of Salzgitter AG. The trade marksare the striking Salzgitter design and the

green outside mirror of the AMG-C classMercedes. After his first DTM season in2006, as the then reigning European For-mula 3 champion, the Englishman experi-enced his first DTM victory in the second-last race of 2007, in Barcelona. Just 21days later, this was followed by his secondsuccess, in the final race of the season atHockenheim.

In the 2008 season, driving more con-sistently, he gained another two victoriesfor Mercedes and Salzgitter at Mugello(Italy) and at the Norisring in Nuremberg.Having finished the season in a very credit-able fourth place in the drivers' classifica-tion, his future targets are ambitious. "Idesperately want to win the DTM, and Iwon't even think about driving in other series before I have achieved this" saysthe friendly Englishman as he looks forwardconfidently to the new season. "I am happywith the excellent cooperation and thegreat trust placed in me by those respons-ible at Salzgitter AG. I therefore have highhopes that I can win the championship ina Salzgitter car."

On 26 April 2009, the long awaited daywill arrive for all fans of the DTM. At theHockenheim circuit, the 100th race of theGerman Touring Car Championship willkick off the new season. We are confidentthat Jamie Green and his team will showtheir familiar will to win and readiness towork hard in 2009. May Jamie be the newchampion when the season ends at theHockenheimring on 25 October.

For more information go towww.dtm.com

Jamie Green

Personal detailsBorn: 14 June 1982 in Leicester (England)Marital status: SinglePlace of residence: Leicester (England)Height: 178 cmWeight: 65 kgHobbies: Golf, football, shootingWebsite: www.jamiegreenracing.co.uk

CareerJamie Green was active in the world of kart-

ing from 1996 to 2001, and then switched

successfully to the British Formula Renault

championship in 2002. In 2003 he moved up

to Formula 3. In 2005, as reigning European

Formula 3 champion, he moved into the

DTM, driving a Mercedes C-class for the

Persson Motorsport team. In 2006, Mercedes

motorsport boss Norbert Haug promoted him,

together with team colleague Bruno Speng-

ler, to the factory Mercedes AMG line-up.

Jamie Green obtained his first DTM wins in

the final two races of the 2007 season, in

Barcelona and Hockenheim. These were

followed by wins in Mugello and on the Noris-

ring in the 2008 season, when he finished

fourth in the drivers’ classification.

10 HFI GLOBAL · 02/2009

Ethylene – inside and outside: 20,000 pipes for southern Germany

The construction of the Ethylene Pipeline South is creating the necessary infra-structure for the safe and economic transport of ethylene between key chemicalsites in southern Germany. Salzgitter Mannesmann Line Pipe supplied 360 km ofpipes for this technically and logistically highly demanding project.

Ethylene Pipeline South

HFI GLOBAL · 02/2009 11

he main beneficiaries of this projectare the metropolitan region of Ludwigs-

hafen/Mannheim, the North Baden eco-nomic region, the Ingolstadt area and theBavarian "chemical triangle" around Burg-hausen. The route runs from Münchs-münster near Ingolstadt straight acrossBaden-Württemberg to Karlsruhe. Thisstretch is followed by underwater crossingsthrough the Danube, Neckar and Rhine.Continuing northward, it terminates at theBASF site in Ludwigshafen. The pipelineis expected to be completed and in oper-ation during the course of 2009.

Link-up with north-west Europeanethylene network – prospects forEurope as a wholeThe new pipeline will be connected toexisting supply systems: in Bavaria, to the pipeline between Münchsmünster andGendorf/Burghausen, and in Ludwigshafen,to the pipeline to Wesseling, and hence to the ethylene network in north-westEurope. This will open the way to further

steps in the expansion of the Europeannetwork: links to the Czech Republic,Italy, Croatia and Austria, with furtheroptions through Slovakia to Hungary,and towards France. The plannedpipeline is therefore simultaneously aconnection module and part of a futureclosed trans-European ethylene pipe-line network. It will play a part in elimin-ating the disadvantages of the petro-chemical industry in Europe relative tothe USA and the Middle East, and in-creasing its global competitiveness.

Constructor and operator in oneThe client for this major project isEthylen-Pipeline-Süd GmbH & Co KG(EPS). EPS is a joint project betweenseven leading petrochemical and chem-ical companies. EPS is constructingthe pipeline and will also operate it.The total costs of the project currentlyamount to 180 million euros. Financialsupport from the state of Bavaria gavethe seven EPS shareholders the plan-

The route of the new pipelineruns across southern Germany,linking the Ingolstadt area andthe Bavarian "chemical triangle"around Burghausen directly tothe BASF site in Ludwigshafen.

The EPS routeExisting pipelines

Preparing to cross the Rhinenear Karlsruhe: The underwatercrossing will be given a heavycoat of concrete before it canbe finally pulled in.

One of the large storage areas to whichthe pipes were delivered by rail. Fromhere special trucks distributed the pipesalong the route.

T

12 HFI GLOBAL · 02/2009

ning security they needed, and their ap-proval of the final financing concept inOctober 2006 was the starting signal forthe project.

Safety is top priority The safety and protection of citizens andthe environment were the main factors guiding the choice of the route. Specialaspects of the settlement pattern, urbandevelopment and protection of the land-scape and nature were taken into consid-eration. To minimise the impact on the

landscape, almost 90 % of the plannedroute runs parallel to existing supply lines.Construction and recultivation are carriedout so carefully that normal land use canbe resumed immediately afterwards. Thepipes for the 360 km pipeline in DN 250with a wall thickness of 7.1 mm were pro-duced by Salzgitter Mannesmann LinePipe in L 360 MB grade with a PE coating.The finished pipeline will be operated at apressure of 60 – 90 bar and will carry up to 400,000 tonnes of ethylene each year.Besides a monitoring system, the pipelineis also provided with shutoff stations every12 to 18 km.

Demanding logistical performanceThe logistical development of the projectwas perhaps even more demanding than

Below: The parallelpipe strings of theLUKA (right) and

EPS (left) wind theirway from Ludwigs-hafen to Karlsruhe.

Right: Most of the route follows

existing power line and supply

line routes.

The new pipeline will play a part in

eliminating the disadvantages of the

petrochemical industry in Europe and

increasing its global competitiveness.

HFI GLOBAL · 02/2009 13

the production of the pipes to the exact-ing customer specification. About 20,000pipes had to be delivered precisely on timeto some 10 storage depots along the pipe-line route. The logistics planners of SalzgitterMannesmann Line Pipe achieved a trans-port rate of more than 45% by rail, elimin-ating the need for approximately 400 truckjourneys. The section of the route fromLudwigshafen to Karlsruhe also requiredprecise coordination, as BASF’s LUKApipeline had to be laid in parallel. SalzgitterMannesmann Line Pipe supplied 75 km ofpipes of almost the same type for this.

Operation on common carrier principleAccess to the new pipeline will not be re-stricted to a closed circle of users. Rather,the pipeline will be operated on the com-mon carrier principle, with access to all,from the very beginning. All ethylene pro-ducers and buyers and other interestedparties will be able to use the pipelineunder the same terms and conditions.The significance of this open access canbe gauged from the fact that the MiRO

fuel refinery in Karlsruhe has decided toconnect its site to the EPS pipeline.

Ethylene production and useEthylene (C2H4) – also referred to as ethene– is a colourless, flammable gas with aslightly sweet odour. Mixtures of 3 to 29percent by volume of ethylene with air areexplosive. The double bond between thetwo carbon atoms makes ethylene highlyreactive. The readily formed products ofsuch reactions include ethyl bromide,ethene-1,2-diol and polyethylene.

Ethylene is an important base material forthe chemical industry. It is used to make,for example, films, adhesives, sealants,plastic bottles and detergents. Many medicines also contain ethylene. Last butnot least, Salzgitter Mannesmann LinePipe is dependent on ethylene, as poly-ethylene coating protects the suppliedsteel pipes against external influences andcorrosion. And that is the really uniqueaspect of the EPS pipeline: ethylene – inside and outside.

Left: Andreas Weishaupt, EPSTechnical Manager, and StephanMaier, Project Manager at SalzgitterMannesmann Line Pipe, at theRhine crossing near Karlsruhe.Top: Preparation of the underwatercrossing. Underwater crossings aremanufactured on land and then pulled into a river. One of the threepipe strings is already available inreserve for further projects.

14 HFI GLOBAL · 02/2009

What has impressed you most about the project?K.T.: The size of the project, with a totallength of about 360 km, is certainly unusualfor Germany. However, a project is oftendistinguished by the way those involvedwork together rather than by its size. Co-operation during the EPS project has been,and still is, excellent and based on trust.This starts with the technical monitoring ofthe construction and the commercial de-velopment, and also includes close con-tacts with the construction managers on site.

What was the decisive factor that resul-ted in Salzgitter Mannesmann Line Pipewinning the contract for the project?K.T.: A number of factors were decisivefor the customer. One factor which wascertainly very important was the activesupport of direct contacts during the for-mulation of the specification to which thepipes were finally manufactured. All detailswere discussed and agreed at an earlystage with TÜV SÜD (the supervisoryagency), the responsible consulting engi-neer and EPS.

In charge of the project are KonradThannbichler (left)and Stephan Maier(right).

»Direct contacts are still very important«

The EPS Pipeline South, with a length of 360 km and a planning period of about 5 years, is an enormous challenge for all project participants. In Siegen, we spoke to the responsible Salzgitter Mannesmann Line Pipe representatives Konrad Thannbichler and Stephan Maier.

Project Ethylene Pipeline South

HFI GLOBAL · 02/2009 15

S.M.: Moreover we were able to demon-strate some very interesting variants forsolving the logistical problems. Naturallythe price was a key factor, but the totalpackage, with our renowned productquality, was ultimately decisive.

Which requirements deserve special mention?S.M.: Given the scope of the project, ourown logistics people were involved at avery early stage. The plan was for about50% of deliveries to be transported byrail. Otherwise about 900 trucks wouldhave been needed to carry them by road.Suitable storage depots with rail links hadto be identified within reach of the pipe-line route. The depots also had to be sur-veyed and approved in good time, so thatany necessary improvements could becarried out in line with quality assurancerequirements.K.T.: From the initial planning to the realisation, a number of implementationoptions were discussed, some of whichwere developed further, so that the bestvariant for all concerned could be preciselydefined. After this identification phase, theTechnical Customer Advice departmentwas brought in to adapt the specificationaccordingly.

What is the contribution of project management to projects of this size?K.T.: We contacted the customer at avery early stage. That is a good startingpoint for the planning, of course. After thefirst technical discussions, our TechnicalCustomer Advice department checked theEPS specification for the realisation andfor conformity with the relevant standards.Logistics and Purchasing were thenbrought in for the concrete quotations.Before production started, our usual pre-production meeting was carried out withthe client (EPS) and the responsible TÜVSÜD. Our Manufacturing and InspectionPlan (MIP) was presented and approved.Discussions of this type are greatly appre-ciated by our customers. Our quality department was in contact with the TÜVresponsible for monitoring production during the entire manufacturing process.

Were there any surprising projectchanges during the implementationphase?S.M.: There were no technical changesduring the entire production period, apartfrom additional quantities being ordered forfurther processing and extra pipe bends.We supplied an additional 16 km of pipesto TDC, Trollenhagen, near Neubranden-burg, for further processing. The pipeswere coated with glass-fibre-reinforcedplastic there, and then transported to thepipeline section where they were needed.

Were the project milestones reached on schedule?S.M.: Given the scope of the project, therewas of course considerable pressure tostay on schedule. In retrospect the goodadvance project planning and the incorpo-ration of time buffers in the schedule proved to be highly advantageous, as wewere able to optimise the welding lots atthe mill. As the depots were also providedwith sufficient pipe material, there wereno delays or construction stoppages.

How important is direct customer contact?S.M.: During the realisation of the pro-ject, contact to EPS was maintained andintensified. Talks were held on the con-struction site and with the commercialand technical departments in Munich.Further talks and contacts were necessaryto coordinate the pipe deliveries. As always, our customers regard personalcommunication with direct contacts asvery important.

What are the prospects for Salzgitter Mannesmann Line Pipe in the chemical sector?K.T.: The chemical sector is certainly aninteresting potential customer for us.Given the increased logistics costs, andtaking safety into consideration, there ismajor development potential for all mater-ials that can be conveyed through pipe-lines. We are therefore confident thatthere will be a shift from transport byroad, rail and water in favour of environ-mentally friendly and safe pipelines.

Konrad Thannbichler

born on 08.11.1968 in Traunstein,

married, 2 children

Konrad Thannbichler has been Sales

Manager for gas and oil line pipe at

Salzgitter Mannesmann Line Pipe for

the Central European region since

2003. Prior to this, he ran the project

department at a manufacturer of

special-purpose machines in Munich.

Stephan Maier

born on 10.12.1961 in Siegen, married,

3 children

Stephan Maier has been working for

Salzgitter Mannesmann Line Pipe for

20 years. Initially employed in internal

sales, he works today as the Sales

Territory and Project Manager for water,

gas and oil line pipe. He is responsible

for central and southern Germany.

16 HFI GLOBAL · 02/2009

In the wake of a significant rise in thenumber of large-volume international pro-jects, Salzgitter Mannesmann Line Pipedecided to make changes to its projectmanagement. The outcome is a profes-sional and structured procedure for thehandling of all projects, whatever theirmagnitude or complexity, by Quality Management and Sales.

Sales and QM as a planning team"How can prompt and efficient exchange

of information between customers andSalzgitter Mannesmann Line Pipe beachieved, and how can we ensure that thequality requirements agreed with customersare complied with during production?"was the core question addressed by theplanning team, consisting of personnelfrom Sales and Quality Management.

Division into quotation and order phasesFirst of all the total planning process,from the customer’s enquiry through tothe supply of the materials, was dividedinto two sub-processes. These are thequotation phase, with

Project checkProject meetingProject planningCustomer coordinationProject costingQuotation drafting

and the order phase, with detailed plan-ning, material planning, pre-productionmeeting, production, quality assuranceand shipping.

Clear definition of responsibilitiesOne of the core aspects in project manage-ment at Salzgitter Mannesmann Line Pipeis the clear definition of responsibilities.Responsibility for the execution of thequotation phase rests with the appropriateproject manager. At Salzgitter Mannes-mann Line Pipe, this is the salespersonwho is responsible for the project. Hecoordinates all the process steps and the participating technical departments(Logistics, Planning, Quality Assurance,Technical Customer Advice, Purchasingand Production).

Differentiation into standard and special projectsFirst of all, the project is systematicallyanalysed with the help of a revised check-list for "Characterising special projects".The evaluation of the checklist gives theproject leader an efficient basis for decid-ing whether the project should be categor-ised as "standard" or "special".

The questions still facing the individualtechnical departments are then worked

Project management – the next step

Against a background of ever larger projects, with ever increasing requirementsand more stringent material specifications, professional project management ensures a smooth exchange of information between customers and project managers at Salzgitter Mannesmann Line Pipe.

At project meetings, the emphasis is on an exchangeof information between the project management andspecialists from the various departments

Project Management Part 1 – From customer enquiry to quotation

HFI GLOBAL · 02/2009 17

through just as systematically. With thehelp of the checklist, the project managerdecides which technical departments mustbe integrated into the planning team forthis project. The contacts in the individualtechnical departments support him duringthe quotation phase in all matters concern-ing production feasibility, and during theorder phase in all matters concerning therealisation.

Project meetingThe project manager forwards all relevantdocuments to the employees involved soas to check whether production is feasible.After a suitable interval for carrying outthese checks, a project meeting is held,at which all participants are present. Theemphasis here is on an exchange of in-formation between project managementand the specialists from the various de-partments, as maximum synergy can begenerated here in the cooperation of thetechnical departments. Only in this waycan a solid basis be created for realisticproject costing.

Drafting a project planAt the project meeting, the informationfrom the individual technical departmentsis brought together to create a project plan.With the help of the "project commitment",the current status is documented in termsof production feasibility, actions, respons-ibilities and any agreements with the cus-tomer. The completed project plan is usedto produce a technical commentary, whichis subsequently submitted together withthe quotation, and the current status, anydeviations in the quality requirement anda comparison of the customer's require-

ment and the production options are docu-mented. This document subsequentlyserves as a basis for the Manufacturingand Inspection Plan (MIP*) agreed betweenthe customer and Salzgitter MannesmannLine Pipe.

Costing and drafting a quotation using SAPAfter the project plan has been drafted and,if necessary, revised in agreement with thecustomer, computer-aided costing of theproject can be carried out on the basis ofthe actual figures. The system makes use

of project-specific quality data, which hasbeen entered into the SAP quality data onthe basis of the agreements reached withthe customer. This SAP module, which wasdeveloped specially for Salzgitter Mannes-mann Line Pipe, contains all quality data(derived in consultation with the customer)from standards and specifications whichwill be of relevance for the subsequentexecution of the contract. With the helpof this fully integrated computer-aided system, all essential information relatingto the customer's invitation to tender canbe checked promptly and efficiently in relation to technical feasibility, brought

* MIP = Manufacturing and Inspection Plan A document containing all quality relevant data ofan order (applicable standards, specifications andcustomer requirements, incl. tolerances, type andscope of testing and testing frequency).

**PPAP = Production Part Approval ProcessA structured process initially developed for the autoindustry but meantime used across all industries.PPAP ensures that outsourced components complywith the quality specifications, that this is documen-ted, and that this quality is maintained throughoutthe life of the product. PPAP documentation showswhether or not a supplier has understood the ma-nufacturer's requirements.

together to form a project plan and, if necessary, agreed with the customer. Afterthe agreed quality criteria have been incorp-orated into the SAP system, the quotationcan be drafted on the basis of all the relev-ant project data.

Central documentationCentral documentation is of crucial import-ance during the course of the project. Thedocumentation, which is based on theautomotive industry’s PPAP** procedure,contains the up-to-date versions of all relevant documents in chronological order.The project leaders and the technical de-partments store all documents concerningthe enquiry – quotation, manufacturingand inspection plan (MIP), invoice, etc. –so that the project leader and the techni-cal departments can always access thecurrent status of the project.

Order phaseThe project management procedures thatapply after an order has been received,including those relating to the transfer ofcustomer-relevant information from thecomputer system to production units anddocumentation, will be described in detailin the next edition of HFI Global.

18 HFI GLOBAL · 02/2009

The importance of performance

Salzgitter Mannesmann Stahlhandel GmbH can look back on over 40 yearsof competence and industry experience. Along with a wide range of sectionsand rolled steel, tubes and pipes are also a major factor in its success.Thanks in large part to its close cooperation with Salzgitter MannesmannLine Pipe, the company can claim to be the only full-range supplier in thedistrict heating pipe sector in Germany.

Sales partner Salzgitter Mannesmann Stahlhandel GmbH

ntegrated in the trading structure of theSalzgitter Group, the company sees it-self as serving the Group’s productive

companies on the German market. Itscore business is that of a steel stockist,which may sound simple, but with 16 locations and a product range unmatchedanywhere in Germany, Salzgitter Mannes-mann Stahlhandel GmbH is in fact ahighly complex enterprise. The companytrades with the entire spectrum of theSalzgitter Group’s product portfolio, i.e.sections, girders, flat products and tubes& pipes of all sizes and grades. This issupplemented by a broad range of flame-cut products and custom-machining services from its own plants and with cooperation partners.

Open-warehouse strategy“A key factor in our company success isthe strategy of the open warehouse,” ex-plains Jens Rojahn, Manager for Pipesand Custom Machining. “This means thatall sales staff have access at all times toall stock at all warehouse locations inGermany.”

By setting up its own service depart-ment, the company responded to demandfrom numerous customers for completecomponents and for comprehensive ware-housing and logistics service. “This alsosatisfies the wish to minimize risk. There’sa growing desire among our customers toshed the burden of capital outlay, place

the responsibility for supplies of materialsin competent hands and achieve this withas little manpower of their own as possi-ble,” says Rojahn, explaining the reasonsfor the creation of the department. Thespecialists of Salzgitter MannesmannStahlhandel are concerned with every-thing to do with materials management,the handling of distribution and purchas-ing services, and outsourcing activities.

This is yet another fine example of howthe company differs from other traders.“We want to make an impression on ourcustomers by improving our performanceand thus become the preferred partner intheir process chain,” says Rojahn express-ing his satisfaction with the company’ssustained success.

Cooperation in district heating pipe businessThe company has been engaged for manyyears in successful cooperation with Salz-gitter Mannesmann Line Pipe. In the fieldof HFI-welded steel pipes, Mathias Bergerand Ilker Santiña are the main contacts at Salzgitter Mannesmann StahlhandelGmbH. What’s new is cooperation in dis-trict heating pipes. They are both highlyappreciative of this close cooperation. Asthe only full-range supplier in Germany,the company is now capable of supplyinglongitudinally welded products from 1 to24 inches and with a maximum length ofup to 18 m.

I

Salzgitter Mannesmann Stahlhandel GmbH

Jens RojahnManager for Pipesand Custom Machining at Salzgitter Mannes-mann StahlhandelGmbH

Mathias BergerManager Pipe SalesRegion West andProduct ManagerHollow Sections andThick-walled Pipe,Salzgitter Mannes-mann StahlhandelGmbH

Ilker SantiñaManager Pipe SalesRegion North andProduct ManagerCommercial Pipe,Salzgitter Mannes-mann StahlhandelGmbH

Workforce: 1,070Head office: DüsseldorfSales: 1.5 billion eurosTurnover: 1.5 billion tonnes of steel,

of which 210,000 tonnes istubes and pipes

As a steel stockist and trading company, Salz-

gitter Mannesmann Stahlhandel GmbH is in-

tegrated in the strategic trading structure of

the Salzgitter Group. With 16 locations and

branches across Germany, the company ser-

ves customers in Germany and neighbouring

countries. Its portfolio includes flat products,

steel sections, tube and pipe, and tube ac-

cessories.

Steel tube & pipe services:· Contour cutting and threading

· Roll milling

· Linings

· Prefabrication from drawings

· Brushing, deburring, descaling and

chip-free washing of precision steel tubes

Surface treatment: · Shot blasting, priming, galvanizing, PE-coating

HFI GLOBAL · 02/2009 19

Project District heating project in Lower Austria

St. Pölten goes for heat from biomass

Reducing the carbon footprint, becoming independent of gas and oil, andintensifying the use of regional resources – this is the approach pursued bythe public utility company in St. Pölten in Lower Austria when it comes toits energy supply. And making this possible are district heating pipes fromSalzgitter Mannesmann Line Pipe and Isoplus Fernwärmetechnik.

20 HFI GLOBAL · 02/2009

o supply about 20,000 district heatingcustomers in the capital of Lower Austria,

resort will be made among other things toa regional heat generation mix as of theend of 2009. The heat comes from a totalof three sources at the Dürnrohr EVNpower plant site 32 km away. These arethe waste incineration plant that convertsthe energy content of domestic wasteinto heat, the two blocks of Dürnrohr’scombined heat and power (CHP) plant,and a new biomass plant.

Immense CO2 savingsThe generation of heat from residualwaste and biomass alone will cut CO2

emissions by over 40,000 tonnes peryear. In the biomass test plant that wentinto operation in 2008, the high-gradebiogas generated will be used in theneighbouring CHP plant as a substitutefuel. Now that the trial operation of the testplant has been successfully completed,expansion plans are already underway.The new plant will then mainly processagricultural biomass such as cereal andmaize straw, lucerne plants and energygrain. In its initial form, the plant will havea thermal output of 3 megawatts. Theinput of the generated biogas alone is capable of saving up to 2,000 tonnes ofhard coal and 7,000 tonnes of CO2.

The centrepiece of the plant will be anindirectly heated rotary furnace in whichthe biomass is heated with the exclusion

of air to about 450 to 650 °C. In this pro-cess, pyrolysis gas and pyrolysis coke are produced for heat generation.

The biomass plant has annual agricul-tural biomass needs of about 1,600 tonnes.Overall, EVN and St. Pölten’s public utilitycompany will not only secure jobs and incomes in farming, but will also make anoteworthy contribution to environmentaland climate protection.

Transporting heat over 32 kilometres The district heat supply in St. Pölten isonly possible, however, thanks to a newdistrict heating pipe. The route runs fromthe power plant site in Dürnrohr in the parish of Zwentendorf along the PerschlingCanal and through the Traisental valley as far as the regional capital.

In cooperation with Salzgitter Mannes-mann Handel in Hamburg, SalzgitterMannesmann Line Pipe supplied a totalof about 48 km of bare black pipes of diameters DN 400 and DN 450 for furtherprocessing at the Isoplus Hohenberg production site in the immediate proximityof the pipe route. Here the pipes werecoated to the specified thicknesses: standard for the return line, increased forthe DN 400 supply line, and special, evenfurther increased for DN 450. Just-in-timedeliveries of the coated pipes to the con-struction sites along the route have beenunderway since May 2008. First of all, thepipes are placed on wooden blocks parallel

to the topsoil-cleared route, where theyare welded together and then lowered insingle string sections up to 700 m longinto the freshly excavated pipeline trench.This procedure familiar from pipeline con-struction is necessary, as in many areasthe trench floor is well below the watertable and the trench can only be kept dryfor a brief period. The logistics for this isbeing handled by Trost, a company thathas had many years of experience of gaspipeline construction in Austria.

Commissioning at the end of 2009After commissioning in October 2009, the pipeline will carry about 200 GWh ofdistrict heat per year to about 20,000customers.

The fact that a distance of over 32 kmcan be covered shows how little heat islost thanks to the efficient insulation ofthe pipes. The heat is fed into the pipelineat Dürnrohr power plant at 140 °C. 32 kmlater, the heat leaves the pipe at St. Pöl-ten’s public utility company at a temperat-ure of 138 °C. The public utility companydistributes the heat to end consumers viathe existing secondary grid.

Anton Steindl and Frank Meyer, responsible managers at Isoplus and Salzgitter Mannesmann Line Pipe, have summed up the successful project withthe following words: “We’re very happy to make our expertise available for this innovative supply strategy.”

HFI GLOBAL · 02/2009 21

T

Kjell RieckmannTeam Leader District Heating Pipe Salzgitter Mannes-mann Handel GmbH

Frank MeyerSales Division Manager Salzgitter Mannes-mann Line Pipe GmbH

22 HFI GLOBAL · 02/2009

Product innovation for trenchless pipe-layingWhen it comes to laying pipe crossings beneath buildings, rivers and traffic routes, trenchless methods are the state of the art. With a new pipe end design and a quick-curing casting resin for field-coating, Salzgitter Mannesmann Line Pipe has now completed its product range for trenchless pipe-laying.

New FCM-S line pipe

Schematic representation of the new pipe end design on an oil or gas line pipe

Schematic representation of the new pipe end design on a water line pipe lined with cement mortar

HFI GLOBAL · 02/2009 23

hanks to the huge range of materialgrades and wall thicknesses, the keyadvantage of steel pipes is that pipe

design can be adapted to the specifiedtensile forces. For trenchless methods,there are also a wide range of coatingsand linings available to suit the applicationand the soil.

However, the success of a project isnot solely dependent on the pipe suppliedwith the appropriate coating. For the hand-ling and assembly of the entire pipelinealso have to be adapted perfectly to thelaying process. The currently available solution of field-coating is in many casesless than ideal, and this is where the opti-mized system gives a significant boost tothe reliability of pipe-laying.

Pipe production with the FCM-S coatingThe highest degree of reliability is achievedwith an FCM coating as additional mechan-ical protection for the corrosion-protectedline pipe. In its FCM-S version, this pro-tective coating is designated specificallyfor trenchless pipe-laying in the DVGWWorksheet GW 340.

To produce this version, the polyethy-lene coating is extruded with an axial T-profile. While the coating is still hot, coarse polyethylene particles are fusedonto the surface to give the ribbed coatinga rougher structure. In this way, mortarmovement is completely ruled out both in the circumferential and the longitudinal

direction. The T-ribbing alsomakes it possible for themortar to key more tightlywith the pipe.

New pipe end design When the pipes have beenwelded together into a string,all the pipe joints have to be protectedfrom corrosion. In addition, the mortarfield coating must be applied in the jointareas before pulling in the pipe string.

In the case of the new version ofcoated pipe for trenchless pipe-laying, theT-ribbing on the last 2 to 3 cm of the pipeends is no longer covered with cementmortar. This ensures that the field-coatingcan also hook up mechanically with thepipe's cement mortar coating.

MAPUR®, the extra-fast field-coating Available for field-coating are both cast-ing mortars and casting resins. Castingmortar is easier to handle, but inevitablyyields less-than-optimum results. In mostcases, the curing time in the course of aproject is too short for the field-coating toachieve the same mechanical propertiesas the existing pipe coating.

Salzgitter Mannesmann Line Pipe hasnow developed MAPUR®, a sand-filledpolyurethane-based casting resin. Thisnovel material satisfies all the expectationsof a field-coating, but sets much faster aswell. The initial series of tests have shownthat its mechanical properties after only a

few hours are comparable to those of thefactory coating.

Service as part of a packageBecause the new MAPUR® requires spe-cial know-how, Salzgitter MannesmannLine Pipe recommends having the fieldcoating operations done by a specialistservice company. The Frankfurt-based firm SKI has extensive application ex-perience based on numerous field testswith MAPUR®.

Perfect component matchDespite all the economic advantages, any decision for or against trenchlesspipe-laying will depend essentially onconfidence in the laying method and onthe suitability of the materials employed.Salzgitter Mannesmann Line Pipe is therefore applying the systems approach: To achieve the best-possible results, allthe components must be a perfectmatch. If the success of pipe-laying canbe checked with measuring instruments,there is then hardly any difference frompipe-laying in open trenches in terms ofreliability.

T

The new MAPUR® casting resin has proved its timesaving potential in numerous field tests.

The main advantages of the new MAPUR®

casting resin are related to its significantly reduced curing time.

»Thanks to targeted further development, both theFCM-S line pipe and the field coating material nowhave technical properties which are unparalleled byany other product in the market. Examples includethe improved shear load resistance of the productinnovation, which provides enhanced safety and reliability in trenchless pipe-laying projects.«

Jörg Hernando

FSH casting mortar (cement plus card-board moulds)

FSH casting mortar (cement plus GFR wrappers)

MAPUR® casting resin (PUR) cold application

MAPUR® casting resin (PUR) hot application

1 day7 days

ca. 3 hours

1 day

1 day1 day

1 day7 days

Overview: Curing time and strength

Minimum curing time after application

Maximum strength achieved after application

24 HFI GLOBAL · 02/2009

he swiftly expanding gas industry, inparticular, suffered from the lack of

serviceable and economically priced pipe.While in those days cast iron could stillbe used for the main pipes, finer pipeswith smaller diameters were now neededfor the branch connections and the serviceconnections to the combustion point, andneeded in such quantities that they couldno longer be manufactured using the tra-ditional techniques.

Hammer welding – the original process Hammer welding, with the smithy forge,hammer and anvil, was a centuries oldtrade and the oldest and original weldingprocess. In the 19th century, the newsheet mills and shears made it possibleto manufacture strip, and this was usedto make pipe by bending the strip andjoining the edges under pressure by forgewelding. Many companies – above all inthe economically prosperous England ofthat time – set to developing better me-

thods based on the old techniques, export-ing the new pipe to the likes of Germany,where the market was only too eager totake it.

Poensgen – founder of the German welded pipe industryIn 1845, Albert Poensgen started up thefirst rolling mill in Germany, at Mauel nearGemünd in the Eifel, for the production oflongitudinally welded wrought iron pipe.Using the butt welding technique, sheetstrip was heated to welding temperature,fed through a funnel-shaped draw platewith the help of a draw bench and shapedto an open pipe. Since the strip wassomewhat wider than the circumferenceof the pipe to be made, the longitudinaledges were pressed firmly together in thefunnel and welded. By repeatedly heatingand drawing the pipe through increasinglynarrower draw plates, the pipe was drawnand stretched while at the same time theweld hardened.

Not long after launching the productionof these "gas pipes", Poensgen alsostarted producing boiler pipe. With thismethod, the chamfered edges of thesheet strip overlapped each other whilethe pipe, with a mandrel inside, wasdrawn to size under pressure betweentwo rollers in a draw bench. Such pipeswere also known as "patent welded".

Yet even the quality of these weldedpipes could not, in the long term, satisfythe growing demands of the swiftly devel-oping industries that were producing machines, vehicles and utility pipelines.The inadequate compressive strength ofthe welds, in particular, constituted a con-stant risk, as the statistics of steam boilerexplosions demonstrate only too clearly.Even the welded pipe pioneer Poensgenhad to turn down inquiries for weldedpipe for manometers, and Carl Benz had solid steel rods drilled out individuallyby hand for the chassis of his patentedvehicle in 1885.

From hammer welding to the high-tech HFI weld

On the history of pipe welding

T

Hammer welding – the ancient processHammer welding, with the smithy forge, hammer andanvil, is a centuries old tradeand the oldest and original welding process.

Albert Poensgen begins producing pipe by butt welding In 1845, Albert Poensgen started upthe first rolling mill in Germany, atMauel near Gemünd in the Eifel, for the production of longitudinally welded wrought iron pipe using thebutt welding technique.

Development of the first electric welding process

James P. Joule found that the heating of an electric conductordepends on its electric resistance.This discovery led to the first electric welding processes.

HFI GLOBAL · 02/2009 25

Competition from seamless pipeThe established welded pipe manufac-turers reacted in great alarm when it waslearned that Reinhard and Max Mannes-mann had applied in 1885 for a patent formanufacturing seamless pipe from solidsteel ingots purely by rolling. In the yearsthat followed, after some initial entrepren-eurial difficulties for Mannesmann, it looked for a time as if the seamless pipewould completely replace its weldedcounterpart. Yet this impression was misleading. For a start, the hope of beingable to roll seamless pipe of every dimen-sion soon proved to be illusory. In addition,the seamless pipes were considerablymore expensive. The dimensional accuracywas not adequate for all applications either. So the welded pipe manufacturerssoon started fighting back, one weaponbeing their threat to stop supplying pipedealers who were selling the seamlessMannesmann pipe.

1899 – Mannesmann takes up welded pipe productionMannesmann reacted to this challenge by setting up its own pipe welding mill inDüsseldorf-Rath and in 1899 began manu-facturing fire and water gas welded pipe.Over the years, Mannesmann would goon advancing to newer, improved weldingtechniques. So today the company thatpioneered seamless steel pipe also hasmore than a hundred years of experiencein manufacturing welded pipe. Indeed, ifyou count the Poensgen Werke, whichwere integrated into Mannesmannröhren-Werke in 1970, the history goes back wellover 160 years.

Almost forgotten – water gas weldingOne welding technique which is today almost forgotten is water gas welding,developed in the 1880s as the earliest variation on pressure gas welding. In Germany the sheet mill Schulz Knaudt, a forerunner of the present HüttenwerkeKrupp Mannesmann GmbH, built the firstwater-gas production plant with mechani-cally operated water-gas welding torchesin 1882. As late as the 1920s, water gaswelding was still regarded as an estab-lished joining technique. Soon after, how-ever, acetylene superseded hydrogen asa fuel gas.

The Fretz-Moon processA further development of solid-state wel-ding was the Fretz-Moon process. Devel-oped in the early 1930s by the US Ameri-can Moon and the German engineer Fretz,it allowed the manufacture of continuouslongitudinally butt-welded pipe strings ofany length. In Germany the process wasintroduced at the then Vereinigte Stahl-werke AG in Mülheim an der Ruhr (todaythe headquarters of Mannesmannröhren-Werke GmbH) in 1932. This principle wasfollowed for the production of basic com-mercial pipe between 40 and 114 mmoutside diameter right up until the 1990s.With modern equipment, the continuouspipe string could be rolled to diametersas small as about 13 mm.

Fusion welding processesVarious other processes emerged for pipe with large diameters which are manu-factured not in a continuous process butin one-off production, the oldest of them

being oxy-acetylene welding followed by,among others, submerged arc welding.Both are types of fusion welding processes.

Electric weldingParallel to the methods described above,various electric or arc welding processeswere developed from the 1880s onwards.These were based on James P. Joule'sdiscovery that the heating of an electricconductor depends on its electric resist-ance. In 1898 the American Standard ToolCompany was granted a first patentwhich allowed it to use resistance weld-ing for pipe production. From the 1930sonwards, resistance welding took over as the main industrial welding process.

Here, too, it was a Mannesmann subsidiary of those days, the Kronprinzcompany, which was the first to use themethod in Germany. The first steel pipeswere manufactured by induction weldingin the 1950s.

HFI weldingAt Salzgitter Mannesmann Line Pipe,high-frequency induction welding hasbeen used for longitudinally welding pipesince 1973. High frequency current heatsthe strip edges to welding temperatureand they can then be pressed togetherand homogeneously welded under pres-sure rollers without additional filler metals.

This is the way in which quality pipeand MSH sections are produced today,both to standard specifications and sophis-ticated customer specifications in outsidediameters of 4.5 to 24 inches (114.3 to609.6 mm) with wall thicknesses between2.9 and 20.6 mm.

Mannesmann takes up welded pipe productionIn 1899 Mannesmann started upproduction of fire and water-gaswelded pipe at its own mill in Düsseldorf-Rath.

Development of the Fretz-Moon processUsing the Fretz-Moon process itbecame possible to manufacturelongitudinally butt-welded contin-uous pipe strings of any length.

Salzgitter Mannesmann introducesthe HFI welding process

From the outset, both the plant andthe HFI welding process at SalzgitterMannesmann Line Pipe have beenimproved on an ongoing basis. In2007 the product range was extendedto include 24 inch diameter pipe.

This year, too, Salzgitter Mannesmann Line Pipe will be present at numerous trade fairs through out the world. We will also organise two customer conventions of our own. Further information and details of these events can be found on the Internet at www.smlp.eu under »News«.

Trade fairs and customer conventions

26 HFI GLOBAL · 02/2009

05./06.02.09Oldenburg Pipeline ForumOldenburg, GermanyStand no.: 1. OG-M-25

30.03. – 03.04.09Wasser Berlin 2009Berlin, GermanyHall/Stand: 5.2B / 504

19. – 22.04.09AerionAthens, GreeceStand: Lymberopoulos

12. – 14.05.09Oil & Gas UzbekistanTashkent, Uzbekistan

13./14.05.09119. ÖVGW-Jahrestagung Graz, AustriaJoint stand with ALPE Kom-munal- & Umwelttechnik

09. – 12.06.09Expo Petro GasBucharest, RomaniaStand: IMD

23. – 26.06.09MIOGEMoscow, Russia

22./23.09.2009DVGW Anniversary Congresswith gat 2009 and wat 2010Leipzig, Germany

May 2009 May 2009 June 2009

June 2009 June 2009 September 2009

01./02.10.2009Customer Convention,WaterSalzgitter MannesmannLine Pipe, Siegen

05. – 09.10.09World Gas Congress Buenos Aires, ArgentinaStand no.: A 60

06. – 09.10.09KIOGEAlmaty, Kazakhstan

October 2009 October 2009 October 2009

October 2009 November 2009

February 2009 March 2009 April 2009

01. – 04.06.09SIEE PollutecAlgier, AlgeriaStand: Biwater

17. – 19.11.2009OGT Ashgabat, Turkmenistan

15./16.10.2009Customer Convention,GasSalzgitter MannesmannLine Pipe, Siegen

Credits

PublisherSalzgitter Mannesmann Line Pipe GmbH

Head OfficeSiegen WorksIn der Steinwiese 3157074 SiegenGermanyPhone: + 49 271 691-0Fax: + 49 271 691-299

info@smlp.euwww.smlp.eu

Concept, editing and designKümpel Lorenz GbR, Büro für Gestaltungwww.kuempellorenz.de

English translationRuth Baldwin, Mönchengladbach

Authors and co-workersJörg Hernando, Horst Dix, Dorothee Karches, Dr. Hans-Jürgen Kocks, JoachimKrägeloh, Stephan Maier, Frank Meyer,Kornelia Rennert, Thorsten Schmidt, Konrad Thannbichler

HFI GLOBAL · 02/2009 27

1 2 3 4

5 6 7 8

Flashlights 1 Trade fair stand at KIOGE, 7 to 10 October 2008 in Almaty, Kazakhstan2/3 Trade fair stand at ADIPEC, 3 to 11 November 2008 in Abu Dhabi, UAE 4/5 Symposium on Trenchless Pipeline Renewal, 10 September 2008 at

Salzgitter Mannesmann Line Pipe in Siegen 6 Customer Convention Water at Salzgitter Mannesmann Line Pipe in Siegen, 25-26 September 2008

7/8 Customer Convention Gas at Salzgitter Mannesmann Line Pipe in Siegen, 16-17 October 2008

Salzgitter Mannesmann Line Pipe GmbH

Head OfficeSiegen WorksIn der Steinwiese 3157074 SiegenGermanyPhone: + 49 271 691-0Fax: + 49 271 691-299

Postal address:Postfach 12 01 5257022 SiegenGermany

Hamm WorksKissinger Weg59067 HammGermanyPhone: +49 2381 420-701Fax: +49 2381 420-719

Postal address:Postfach 17 1359061 HammGermany

info@smlp.euwww.smlp.eu