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Line pipesSteel tubes suitable for welding and threading

EN 10255, S195T

Ruukki is one of the largest manufacturers of welded steel tubes and pipes in Europe.

Steel tubes suitable for welding and threading are manufactured according to European

standard EN 10255 of steel grade S 195 T. Dimension range is 17,2 114,3 mm. The tubes

are supplied in wall thicknesses to L2, medium (M) and heavy (H) series. If needed, tubes are

threaded according to ISO 7/1. Tubes are suitable for galvanizing and for cold bending.

Applications

water pipe lines in which connections are for the most part threaded

indoor line pipe installations for cold and hot water distribution

sprinkler system (often with grooved ends for special couplings f.e.Victualic)

compressed air distribution

indoor city gas distribution

several construction purposes in industries, gardens, houses, trafc systems, stables etc.

LP 1.7.1 08.20081

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Steel tubes suitable for welding and threading. EN 10255, S195T

General

Steel tubes suitable for threading are used mainly for

water pipelines in which connections are for the most

part threaded. Tubes are also suitable for connection

by welding. Unless otherwise specied the tubes will

be supplied bare with plain ends. The tube ends are cut

nominally square to the axis of the tube and they are

free from excessive burrs.

Chemical composition and mechanical properties

Steel tubes are manufactured according to European

standard EN 10255 of steel grade S 195 T. The che-

mical composition and the mechanical properties will

conform to the requirements of Table 1.

NOTE: The steel specied in this document is weldable,

however when subsequently welding tubes produced

according to this document account should be taken of

the fact that the behaviour of the steel during and after

welding is dependent not only on the steel but also

on the conditions of preparing for and carrying out the

welding.

Dimensions, masses and tolerances

The tubes are supplied with wall thicknesses to L2,

medium (M) and heavy (H) series. Series M and H are

delivered as cold-formed or hot stretch reduced. Type

L2 is delivered as hot stretch reduced. Specied outside

diameters (D), wall thicknesses (T) and masses per unit

length are listed in Table 2

For welded tubes the tolerance on wall thickness is:

10 % for M and H series

- 8 % with the plus tolerance limited by the mass

tolerance, for L2.

The mass tolerance on welded tubes is:

7,5 % on bundles of 10 tons or more, for M and H

series

+ 10 % - 8 % on individual tubes for L2.

The external weld bead of electric welded tubes is trim-

med to an essentially ush condition.

The height of the internal weld seam of welded tubes

will not exceed 60 % of the specied wall thickness (T).

The tubes are supplied in the standard length of 6 m

-0 +50 mm. Alternative type of length can be specied

by the purchaser at the time of enquiry and order.

Inspection documents

Tubes are supplied with an inspection document type

2.2., in accordance with EN 10204.

Leak tightness

Tubes (before threading) are tested for leak-tightness by

electro-magnetic test in accordance with EN 10246-1.

Tube ends

Unless otherwise specied the tubes will be supplied

with plain ends. The tube ends are cut nominally square

to the axis of the tube and they are free from excessive

burrs. If needed, tubes can be threaded according to

ISO 7/1. Tube can be supplied with one socket per tube.

The socket is in accordance with EN 10241.

Surface protection

The tubes are supplied bare or with a temporary protec-

tive coating according to customer choice.

Marking

Tubes are marked ink stencilled with following informa-

tion, example:

Series H: WIRSBO SS-EN10255 H W / WIRSBO

Series M: WIRSBO SS-EN10255 M W / WIRSBO

Tubes according to heavy (H) series are normally

painted red. Tubes according to medium (M) series

are normally painted blue. Tubes can be delivered also

bare, without color paint.

Bundeling

The tubes are delivered in hexagonal bundles.

Bundle sizes are listed in Table 3.

Chemical composition (cast analysis) and mechanical properties Table 1

Steel Grade Chemical composition % Mechanical Properties

C

max

Mn

max

P

max

S

max

Upper Yield strength

ReH

min

MPa

Tensile strength

Rm

MPa

Elongation

A min.

%

S 195T 0.20 1.40 0.035 0.030 195 320 to 520 20

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Steel tubes suitable for welding and threading. EN 10255, S195T

Bundle sizes Table 3

Dimensions and bundlesizes

EN10255 Type L2 Wbare

EN10255 Mself colour or painted

EN10255 Mhot dip galvanized

EN10255 Hself colour or painted

EN10255 Hhot dip galvanized

nom.

bore

Dimen-

sion

inch

Dimen-

sion

mm

Pcs

bundle

Meter

bundle

kg

bundle

Pcs

bundle

Meter

bundle

kg

bundle

Pcs

bundle

Meter

bundle

kg

bundle

Pcs

bundle

Meter

bundle

kg

bundle

Pcs

bundle

Meter

bundle

kg

bundle

10 3/8 17.8 200 1200 1020 91 546 490 91 546 490 91 546 575

15 1/2 21.3 91 546 520 169 1014 1240 91 546 700 91 546 790 91 546 825

20 3/4 26.9 91 546 770 127 762 1205 127 762 1265 91 546 1040 91 546 1095

25 1 33.7 91 546 1100 91 546 1335 91 546 1400 61 366 1090 61 366 1145

32 1 1/4 42.4 61 366 940 61 366 1150 61 366 1205 61 366 1405 61 366 1475

40 1 1/2 48.3 61 366 1200 61 366 1325 61 366 1390 37 222 985 37 222 1035

50 2 60.3 37 222 920 37 222 1135 37 222 1190 37 222 1370 37 222 1440

65 2 1/2 76.1 37 222 1300 37 222 1445 37 222 1520 19 114 900 19 114 945

80 3 88.9 19 114 775 19 114 1000 19 114 1050 19 114 1150 19 114 1210

100 4 114.3 19 114 1130 19 114 1380 19 114 1450 19 114 1640 19 114 1725

Dimensions, diameter tolerance and mass per unit length Table 2

Outside diameter L2 type M Medium series H Heavy series

Thread

size

Diameter range Wall

thickness

Mass Diameter range Wall

thickness

Mass Diameter range

mm

Wall

thickness

Mass

DN D mm R mm T mm kg/m mm T mm kg/m T mm kg/m

10 17.2 3/8 16.7 27.5 2.3 0.89 16.7 17.5 2.9 1.02

15 21.3 1/2 21.0 21.4 2.0 0.95 21.0 21.8 2.6 1.21 21.0 21.8 3.2 1.44

20 26.9 3/4 26.4 26.9 2.3 1.38 26.5 27.3 2.6 1.56 26.5 27.3 3.2 1.87

25 33.7 1 33.2 33.8 2.6 1.98 33.3 34.2 3.2 2.41 33.3 34.2 4.0 2.93

32 42.4 1 1/4 41.9 42.5 2.6 2.54 42.0 42.9 3.2 3.10 42.0 42.9 4.0 3.79

40 48.3 1 1/2 47.8 48.4 2.9 3.23 47.9 48.8 3.2 3.56 47.9 48.8 4.0 4.37

50 60.3 2 59.6 60.2 2.9 4.08 59.7 60.8 3.6 5.03 59.7 60.8 4.5 6.19

65 76.1 2 1/2 75.2 76.0 3.2 5.71 75.3 76.6 3.6 6.42 75.3 76.6 4.5 7.93

80 88.9 3 87.9 88.7 3.2 6.72 88.0 89.5 4.0 8.36 88.0 89.5 5.0 10.3

100 114.3 4 113.0 113.9 3.6 9.75 113.1 115.0 4.5 12.2 113.1 115.0 5.4 14.5

This data sheet is accurate to the best of our knowledge and understanding. Although every effort has been made to ensure accuracy.

the company cannot accept responsibility for any loss. damage or other consequence resulting from the use of this publication.We reserve the right to make changes.

Copyright 2008 Rautaruukki Corporation. All rights reserved.

Ruukki, More With Metals and Rautaruukki are trademarks or registered trademarks of Rautaruukki Corporation.

Our Customer Service is happy to give you further information

Sales. technical support info.metals@ruukki.comRautaruukki Corporation. P.O. Box 138. FI-00811 Helsinki. Finland. tel. +358 20 5911 www.ruukki.com

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