Brass Alloys for Drinking Water Applications€¦ · Drinking water is by far our most important...

Metall Messing

Metall

Brass Alloys for Drinking Water ApplicationsDIN 50930 - 6S3874 Reduction of Lead in Drinking Water Act

Mappe Trinkw.Leg._2017_DS_e.indd 5 10.02.17 18:17

Drinking water is by far our most important natural resource

and fundamental for our health.

Worldwide the limitations regarding materials and their infl uences

on drinking water quality are increasingly getting stricter.

Therefore, the proper choice of suitable alloys for drinking water

installations is one of the most crucial aspects.

Technical, economic, and – with growing interest – hygienical

characteristics have to be considered.

Enclosed Diehl Metall Messing offers you a compilation of suitable

alloys for drinking water installations.

All enclosures provide the recent information regarding the approval process.

Single enclosures will be updated if required.

Brass alloys – specially designed for the requirements of drinking water applications

Diehl Metall MessingTomorrow. Today. Since 1902.Diehl Metall MessingTomorrow. Today. Since 1902.


Metall Messing

CuZn21Si3P

®

September 2013

1. Designation

DIEHL: 430 PbF (Cuphin)

Material symbol: CuZn21Si3P

EN-No.: CW724R

2. Composition (nominal, mass- %)

Cu 75.0 – 77.0 Zn remainder

Si 2.7 – 3.5

P 0.02 – 0.10

Other elements:

Pb ≤ 0.1 Mn ≤ 0.05

Al ≤ 0.05 Ni ≤ 0.2

Fe ≤ 0.3 Sn ≤ 0.3

All other elements according to hygienic list (≤ 0.02 % each)

3. Approval according to DIN 50930 – 6 This alloy can be used in drinking water applications for faucets including faucet extensions (lead content ≤ 3.5 %) of product group B and C.

Hygienic list: Accepted.

4. Approval according to US-legislation S3874 Reduction of Lead in Drinking Water Act.

This alloy can be used in drinking water applications.

5. Products and suitable standards

Rod for free machining purposes EN 12164

Wrought and unwrought forging stock EN 12165

Hollow rod for free machining purposes EN 12168

Profi les EN 12167

6. Mechanical properties and hardness

Rod, drawn (R – condition)

< 10 mm 10 – 30 mm 30 – 50 mm > 50 mm

Rm 670 650 580 * in MPa

Rp0,2 430 400 350 * in MPa

A5 10 16 18 * in %

* Values on request

Rod, extruded (M – condition; approximate values)

Rm (570) in MPa

Rp0,2 (250) in MPa

A5 (35) in %

Hardness

(Brinell) (150) HB

6.1 Further mechanical properties Approximate values for condition drawn and annealed

Endurance bending strength MPa 320

High-temperature strength MPa (350°C) 350

Notch impact acc. To EN 10045

U-Kerb J 14

V-Kerb J 18

Modulus of elasticity GPa 106

Shear modulus GPa 39

Poisson‘s ratio 0.32

7. Physical properties

Density g/cm³ 8.3

Linear expansion coeffi cient at 20-200°C • 10-6/K 20

Thermal conductivity

RT in W/(m∙K) 28

200°C in W/(m∙K) 44.4

Specifi c thermal capacity

RT in J/(g∙K) 0.35

200°C in J/(g∙K) 0.41

Electrical conductivity in m/(Ω∙mm²) 5.3

Specifi c electrical resistance in (Ω∙mm²)/m 0.19

CuZn21Si3P 430 PbF (Cuphin) Page 2

Diehl Metall Stiftung & Co. KGHeinrich-Diehl-Straße 9D-90552 Röthenbach a.d. [email protected] www.diehl.com/metall

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8. Processing properties Forming

Machinability very good

Hot working property very good

Cold working property moderate

Surface treatment

Polishing good

Electroplating good

Joining

Gas-shield welding / resistance welding good

Soft soldering very good

Hard soldering very good

9. Thermal treatment

Soft annealing 550 – 700°C

Stress relieving 200 – 300°C

Hot forming 750 – 800°C

10. Corrosion resistance In general good resistance to organic substances and neutral or alkaline compounds. Very good resistance against dezincifi cation. Resistant against stress corrosion cracking.

11. Dezincifi cation resistance according to ISO 6509 This alloy meets the requirements of the relevant standards.

12. Typical applications Particularly suitable for use in drinking water by the high corrosion resistance. Alloy 430 is a lead-free brass showing good processing behaviour in forging, cold forming and machining. High-strength engineering material.

Processings at temperatures above 580°C have a negative effect to the dezincifi cation resistance. To ensure maximum dezincifi cation resistance, it must be therefore adjusted again by a suitable heat treatment. For further information please contact the manufacturer.

CuZn21Si3P 430 PbF (Cuphin) Page 3

Metall Messing

CuZn21Si3P

®

September 2013

1. Designation

DIEHL: 432 PbF (Cuphin)

Material symbol: CuZn21Si3PB

EN-No.: CW724R


Cu 75.0 – 77.0 Zn remainder

Si 2.7 – 3.5

P 0.02 – 0.10

Other elements:

Pb ≤ 0.1 Mn ≤ 0.05

Al ≤ 0.05 Ni ≤ 0.2

Fe ≤ 0.3 Sn ≤ 0.3







Ingots and castings EN 1982

6. Mechanical properties and hardness Reference values (die casting)

Rm–500 N/mm² Rp02–200 N/mm² A5–22% HB–135


Density g/cm³ 8.3

Coeffi cient of thermal expansion 20-200°C • 10-6/K 20

Electrical conductivity m/ (Ω mm²) 5.3


Diehl Metall Stiftung & Co. KGHeinrich-Diehl-Straße 9D-90552 Röthenbach a.d. [email protected] www.diehl.com/metall

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8. Processing properties

Machinability good

Castability good

9. Thermal treatment

Soft annealing 550 - 700°C 1 - 2h

Stress relieving 200 - 300°C 1 - 2h

10. Corrosion resistance In general good resistance to organic substances and neutral or alkaline compounds. Very good dezincifi cation resistance, good resistance against stress corrosion cracking.

11. Dezincifi cation resistance according to ISO 6509 This alloy meets the requirements of the relevant standards.

12. Typical applications Alloy 432 is a lead-free brass for casting applications. The alloy shows good machining and cold forming properties. High-strength construction material.

Processings at temperatures above 580°C have a negative effect to the dezincifi cation resistance. To ensure maximum dezincifi cation resistance, it must be therefore adjusted again by a suitable heat treatment. The dezincifi cation resistance is recovered by an annealing treatment at 550°C for 2 hours. For further information please contact the manufacturer.

CuZn33Pb1AISiAs

®

December 2015

Metall Messing

1. Designation DIEHL: 412 (Aqcuarin, alloy for forging)

Material symbol: CuZn33Pb1AlSiAs

EN-No.: CW 725 R

2. Composition (nominal, mass- %) Cu 64.0 – 67.0 AI 0.1 – 0.4

Pb 0.4 – 0.6 Si 0.1 – 0.3

Zn remainder As 0.04 – 0.08

Other elements:

Fe ≤ 0.3 Sn ≤ 0.3

Mn ≤ 0.1

Ni ≤ 0.2


3. Hygienic approval This alloy can be used in drinking water applications including faucets and faucet extensions (lead content ≤ 3.5 %) of product group B and C.


4. Approval according to US-legislation S3874 Reduction of Lead in Drinking Water Act. This alloy can conditionally be used in drinking water applications.




Profi les EN 12167

Seamless, round tubes for general purposes EN 12449

6. Mechanical properties and hardness (Comparable to CuZn36Pb2As)

Tensile properties and hardness are specifi ed in the product EN-standards. The properties depend on product, condition and dimension.

Diehl Metall Stiftung & Co. KGHeinrich-Diehl-Straße 9D-90552 Röthenbach a.d. Pegnitz [email protected] www.diehl.com/metall

Phone +49 911 5704-0 Fax +49 911 5704-245

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Density g/cm³ 8.47

Coefficient of thermal expansion of 20-300°C • 10-6/K 20

Electrical conductivity m/(Ω mm2) 12.8


Machinability good

Hot workability good

Cold workability moderate

9. Thermal treatment Soft annealing 450 - 550°C 1 - 2h


10. Corrosion resistance In general good resistance to organic substances and neutral or alkaline compounds. Good dezincification resistance.

11.DezincificationresistanceaccordingtoISO6509 This alloy meets the requirements of the relevant standards.

12. Typical applications Alloy 412 is an engineering material with medium strength and good ductility. The alloy is suitable for use in aggressive potable water and for sea water applications. Alloy 412 is lead reduced and shows good free machining properties and is suitable for cold forming.

The copper-zinc alloy CuZn33Pb1AlSiAs (Diehl-No. 412) fulfills the requirements according to DIN 50930-6 (Issue 08/2001).

Rods and profiles as prematerial for forgings will be supplied without dezincification resistance. To achieve the dezincification resistance after forging, a thermal treatment at 500 - 550°C / 2 hours is required. For further information please contact the manufacturer.

CuZn33Pb1AISiAs

®

December 2015

Metall Messing

1. Designation DIEHL: 413 (Aqcuarin, alloy for machining)

Material symbol: CuZn33Pb1AISiAs

EN-No.: CW 725 R

2. Composition (nominal, mass- %) Cu 64.0 – 67.0 AI 0.1 – 0.4

Pb 0.4 – 0.6 Si 0.1 – 0.3

Zn remainder As 0.04 – 0.08

Other elements:

Fe ≤ 0.3 Sn ≤ 0.3

Mn ≤ 0.1

Ni ≤ 0.2


3. Hygienic approval This alloy can be used in drinking water applications including faucets and faucet extensions (lead content ≤ 3.5 %) of product group B and C.


4. Approval according to US-legislation S3874 Reduction of Lead in Drinking Water Act. This alloy can conditionally be used in drinking water applications.


Rod for free machining purposes EN 12164


Profi les EN 12167

6. Mechanical properties and hardness (Comparable to CuZn36Pb2As)

Tensile properties and hardness are specifi ed in the product EN-standards. The properties depend on product, condition and dimension.


Phone +49 911 5704-0 Fax +49 911 5704-245

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Density g/cm³ 8.47

Coefficient of thermal expansion of 20-300°C • 10-6/K 20



Machinability good





10. Corrosion resistance In general good resistance to organic substances and neutral or alkaline compounds. Good dezincification resistance.


12. Typical applications Alloy 413 is an engineering material with medium strength and good ductility. The alloy is suitable for use in aggressive potable water and for sea water applications. Alloy 413 is lead reduced and shows good free machining properties. The brass is suitable for cold forming.

The copper-zinc alloy CuZn33Pb1AlSiAs (Diehl-No. 413) fulfills the requirements according to DIN 50930-6 (Issue 08/2001).

After a cold forming, a stress relief at <300°C and 1-2 hours holding time at temperature is recommended. Processings at temperatures above 600°C have a negative effect to the dezincification resistance. To ensure the dezincification resistance, it must be therefore adjusted again by a suitable heat treatment. For further information please contact the manufacturer.

CuZn38AsSeptember 2013

Metall Messing

1. Designation DIEHL: 062

Material symbol: CuZn38As

EN-No.: CW 511 L

2. Composition (nominal, mass- %) Cu 61.5 – 63.5

As 0.02 – 0.15

Zn remainder

Other elements:

Al ≤ 0.1 Sn ≤ 0.1

Fe ≤ 0.1 Mn ≤ 0.1

Ni ≤ 0.3

Pb ≤ 0.2






5. Products and suitable standards Rod for free machining purposes EN 12164


Profi les EN 12167



Phone +49 911 5704-0 Fax +49 911 5704-245

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6. Mechanical properties and hardness Tensile properties and hardness are specified in the product EN-standards. The properties depend on product, condition and dimension.


Density g/cm³ 8.4


Heat conductivity W/mK 123



Machinability (CuZn39Pb3 = 100%) poor

Hot workability moderate

Cold workability good



10. Corrosion resistance In general good resistance to organic substances and neutral or alkaline compounds.


12. Typical applications CuZn38As is resistant to dezincification and has a good cold workability. It has good soldering characteristics and good weldability. This alloy can be used in drinking water applications.

After processing operations with temperatures > 600°C an appropriate heat treatment to restore dezincification resistance has to be conducted. In this case the annealing temperature has to be approx. 500-550°C. For further information please contact the manufacturer.

CuZn40September 2013

Metall Messing


Material symbol: CuZn40

EN-No.: CW 509 L


Zn remainder

Other elements:

Al ≤ 0.05 Sn ≤ 0.3

Fe ≤ 0.2 Pb ≤ 0.2

Ni ≤ 0.02




4. Approval according to US-legislation S3874 Reduction of Lead in Drinking Water Act. This alloy can be used in drinking water applications.



Profi les EN 12167



Phone +49 911 5704-0 Fax +49 911 5704-245

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Density g/cm³ 8,4

Coefficient of thermal expansion of 20-300°C • 10-6/K 20,3


Machinability poor

Hot workability good (650 - 760°C)

Cold workability less suitable




11.DezincificationresistanceaccordingtoISO6509 This alloy does not meet the requirements of the relevant standards.

12. Typical applications Good cold forming and moderate hot forming. Punching and stamping brass. Suitable for bending, riveting, swaging and flanging. Applications are hot stamped parts, fittings and lock parts. Diehl 013 meets the requirements of DIN 50930, part 6.

CuZn42September 2013

Metall Messing


Material symbol: CuZn42

EN-No.: CW 510 L


Zn remainder

Other elements:

Al ≤ 0.05 Sn ≤ 0.3

Fe ≤ 0.3

Pb ≤ 0.2

Ni ≤ 0.02




4. Approval according to US-legislation S3874 Reduction of Lead in Drinking Water Act. This alloy can be used in drinking water applications.



Profi les EN 12167



Phone +49 911 5704-0 Fax +49 911 5704-245

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Density g/cm³ 8.5

Coefficient of thermal expansion of 20-300°C • 10-6/K 21.4


Machinability moderate

Hot workability good (650 - 760°C)

Cold workability poor




11.DezincificationresistanceaccordingtoISO6509 This alloy does not meet the requirements of the relevant standards.

12. Typical applications CuZn42 is a brass with excellent hot forming properties and can still be machined. The cold formability is limited. Diehl 057 meets the requirements of DIN 50930, part 6.

CuZn39Pb3September 2013

Metall Messing

1. Designation

DIEHL: 002

Material symbol: CuZn39Pb3

EN-No.: CW 614 N


Cu 57.0 – 62.0

Pb 2.5 – 3.5

Zn remainder

Other elements:

Al ≤0.05 Si ≤0.03

Fe ≤0.3 Sn ≤0.3

Ni ≤0.2

Allotherelementsaccordingtohygieniclist(≤0.02%each)

3. Approval according to DIN 50930 – 6 This alloy can be used in drinking water applications for faucets including faucet extensions (leadcontent≤3.5%)ofproductgroupC.


4. Approval according to US-legislation S3874ReductionofLeadinDrinkingWaterAct. This alloy can conditionally be used in drinking water applications.


Rodforfreemachiningpurposes EN12164


Hollowrodforfreemachiningpurposes EN12168

Profiles EN12167

6. Mechanical properties and hardness TensilepropertiesandhardnessarespecifiedintheproductEN-standards. The properties depend on product, condition and dimension.

DiehlMetallStiftung&Co.KGHeinrich-Diehl-Straße9D-90552Röthenbacha.d.Pegnitz [email protected] www.diehl.com/metall

Phone +49 911 5704-0 Fax +49 911 5704-245

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Density g/cm³ 8.5

Coefficientofthermalexpansionof20-300°C • 10-6/K 21.4


Machinability excellent

Hotworkability excellent(650-760°C)


9. Thermal treatment Softannealing 450-550°C 1-2h

Stressrelieving 280-330°C 1-2h


11.DezincificationresistanceaccordingtoISO6509 Thisalloydoesnotmeettherequirementsoftherelevantstandards.

12. Typical applications CuZn39Pb3isthestandardalloyformachiningpurposes(Index100%).Suitableforswivelsof everykind.Verywellsuitedforforgedparts.Thecoldworkabilityislimited.

The alloy meets the requirements of DIN 50930, part 6.


Metall Messing

1. Designation

DIEHL: 003


EN-No.: CW 617 N


Cu 57.0 – 60.0

Pb 1.6 – 2.2

Zn remainder

Other elements:

Al ≤0.05 Si ≤0.03

Fe ≤0.3 Sn ≤0.3

Ni ≤0.1


3. Approval according to DIN 50930 – 6 This alloy can be used in drinking water applications for faucets including faucet extensions (leadcontent≤3.5%)ofproductgroupBandC.







Profiles EN12167



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Density g/cm³ 8.4









11.DezincificationresistanceaccordingtoISO6509 Thisalloydoesnotmeettherequirementsoftherelevantstandards. Microstructureafterdezincificationtest(ISO6509)iscomparablewithalloy002.

12. Typical applications Excellent hot workability and machinability. The cold workability is limited. ThealloymeetstherequirementsofDIN50930,part6.


Metall Messing

1. Designation

DIEHL: 005


EN-No.: CW 617 N


Cu 57.0 – 60.0

Pb 1.6 – 2.2

Zn remainder

Other elements:

Al ≤0.05 Si ≤0.03

Fe ≤0.3 Sn ≤0.3

Ni ≤0.1






Rodforfreemachiningpurposesn EN12164



Profiles EN12167



Phone +499115704-0 Fax +499115704-245

V-Oe/02/2017/Fri/0.3


Density g/cm³ 8.4









11. DezincificationresistanceaccordingtoISO6509 Thisalloydoesnotmeettherequirementsoftherelevantstandards. Microstructureafterdezincificationtest(ISO6509)iscomparablewithalloy002.

12. Typical applications Excellent hot workability and machinability. Thecoldworkabilityislimited.Suitableforforged partsandmachiningonautomats.Minimalmagnetizabilityduetolimitedironcontent (“non-magneticbrass”).

ThealloymeetstherequirementsofDIN50930,part6.


Metall Messing

1. Designation

DIEHL: 006


EN-No.: CW 614 N


Cu 57.0 – 62.0

Pb 2.5 – 3.5

Zn remainder

Other elements:

Al ≤0.05 Si ≤0.03

Fe ≤0.3 Sn ≤0.3

Ni ≤0.2









Profiles EN12167



Phone +49 911 5704-0 Fax +49 911 5704-245

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Density g/cm³ 8.5










12. Typical applications SpecialalloyfromthegroupofCuZn39Pb3withimprovedcoldworkability.Standardalloy formachiningonautomats.Suitableforswivelsofeverykind,whichmaybemachinedand further processed by limited cold forming, e.g. thread rolling, crimping. The cold workability is still limited.



Metall Messing

1. Designation

DIEHL: 008


EN-No.: CW 612 N


Cu 57.0 – 60.0

Pb 1.6 – 2.2

Zn remainder

Other elements:

Al ≤0.05 Si ≤0.03

Fe ≤0.3 Sn ≤0.3

Ni ≤0.1









Profiles EN12167



Phone +499115704-0 Fax +499115704-245

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Density g/cm³ 8.4










12. Typical applications Excellent machinability and hot workability. The cold workability is limited. CuZn39Pb2 isusedforpartsinfinemechanic,machineandapparatusconstruction.



Metall Messing

1. Designation

DIEHL: 205


EN-No.: CW 603 N


Cu 57.0 – 62.0

Pb 2.5 – 3.5

Zn remainder

Other elements:

Al ≤0.05 Si ≤0.03

Fe ≤0.3 Sn ≤0.3

Ni ≤0.2








Profiles EN12167



Phone +499115704-0 Fax +499115704-245

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Density g/cm³ 8.5

Coefficientofthermalexpansionof20-300°C •10-6/K 20.6




Cold workability good





12. Typical applications Goodmachinabilityandcoldworkability.Suitableformachiningonautomats. MostcommonalloyforfreemachiningintheUnitedStates.

September 2013

CuZn40Pb2

Metall Messing

1. Designation

DIEHL: 313


EN-No.: CW 617 N


Cu 57.0 – 60.0

Pb 1.6 – 2.2

Zn remainder

Other elements:

Al ≤0.05 Si ≤0.03

Fe ≤0.3 Sn ≤0.3

Ni ≤0.1









Profiles EN12167



Phone +499115704-0 Fax +499115704-245

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Density g/cm³ 8.4




Hotworkability good(650-800°C)






12. Typical applications Excellent hot workability and machinability. The cold workability is limited. Suitableforforged parts and machining on automats.

ThealloymeetstherequirementsofDIN50930,part6.

Diehl Metall Stiftung & Co. KGHeinrich-Diehl-Straße 9D-90552 Röthenbach a.d. PegnitzPhone +49 911 5704-0 Fax +49 911 [email protected] www.diehl.com/metallV-

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Brass Alloys for Drinking Water Applications€¦ · Drinking water is by far our most important...

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