22. CuZn39Pb2 (CW612N) / CuZn39Pb3 (CW614N) / CuZn40Pb2 (CW617N)

CuZn39Pb2 (CW612N) / CuZn39Pb3 (CW614N) / CuZn40Pb2 (CW617N)

Common name Material description
World specifications
EuropeanBritishAmerican
Low lead alloy for drinking waterCuZn39Pb2 / CuZn39Pb3 / CuZn40Pb2CW612N / CW614N / CW617N
(EN 12164:2016)
--

Other name: C37700, C37710, C38500, C37800, C38000, C3603, C3604, C3771, C3651, CZ 120, CZ121Pb3, CZ 22, LS59-3
The equivalence between the standards is not absolute and some variations in composition can exist.

CW612N Chemical Composition in % (EN 12164:2016)

 CuSnPbZnNiAlFeMnPSSiSbAsCrBiCdSe
Min59.0-1.6Rem.----

-

-

-

-

-

----
Max60.00.32.5-0.30.050.3----------

Others total max. 0.2

CW614N Chemical Composition in % (EN 12164:2016)

 CuSnPbZnNiAlFeMnPSSiSbAsCrBiCdSe
Min57.0-2.5Rem.---->

-

>

-

>

-

>

-

>

-

----
Max59.00.33.5-0.30.050.3>->->->->->->->->--

Others total max. 0.2

CW617N Chemical Composition in % (EN 12164:2016)

 CuSnPbZnNiAlFeMnPSSiSbAsCrBiCdSe
Min57.0-1.6Rem.-------------
Max59.00.32.5-0.30.050.3----------

Others total max. 0.2

Properties:

Alloy for metallic materials used for products in contact with drinking water.

Application:

CW612N and CW617N materials can be used for drinking water products.

CW614N materials can be used for drinking water products

CW612N has a high content in copper, with excellent machinability properties, allowing a good chip removal due to the content in lead. Furthermore, it also has excellent hot working properties, which makes it ideal for parts that suffer a significant deformation in hot stamping process.

CW614N is the benchmark material for machining, with a machinability index of 100 %. Therefore, it is the perfect material for applications where machinable or machining forming is required, ensuring maximum productivity and tool life on high speed repetition work. CW617N is the benchmark material for hot stamping brass rods. This alloy perfectly combines hot stamping and machining properties, making it the best solution for parts of high complexity that require demanding machining operations after stamping. It is also perfect for producing parts that only require free machining operations.