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CuZn33Pb1AlSiAs | CW725R Material Datasheet

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Material Description

Material Number Material Number (single) Standard Scope Standard Status Country Predecessor VDA 231-106 classification
CW725R (DIN EN 12168 : 2024-12) CW725R DIN EN 12168 : 2024-12 Supersedes DIN EN 12168 : 2016-11 Valid Germany CuZn33Pb1AlSiAs 3.2 1)
1) Remark: Copper alloy hollow rod for free machining purposes.

Chemical Composition

Al [%] As [%] Cu [%] Fe [%] Mn [%] Ni [%] P [%] Pb [%] Si [%] Sn [%]
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Mechanical Properties

Semi-finished Product Strength Abbrevation Nominal Size [mm] Temperature [°C] Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Elongation A [%] Hardness HB | HBW Hardness HV
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Mean Specific Heat Capacity [kJ/(kg*K)] Electric Conductivity [MS/m] Specific Electric Conductivity [% IACS]
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Cross Reference

Material Name Country Standard
CuZn21Si3P Europe EN 12168
C69300 USA UNS
ECOBRASS
Cuphin

Producer/Supplier/Trade names

Tradename Supplier
413 Diehl Metall Stiftung & Co. KG, Röthenbach
OF2274 OTTO FUCHS KG, Meinerzhagen
Z43 Wieland-Werke AG, Ulm