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EN 1652 CuZn15 G020 – High‑Performance Unhardenable Wrought Alloy

CuZn15 (CW502L) is an unhardenable wrought alloy. High hardness and strength parameter are achievable by cold forming only. Thermal and electrical conductivity are lower than for CuZn10. Corrosion resistance is similar to pure copper. Processing properties: warm forming: moderately cold forming: good machinability: moderately hard and soft soldering: very good TIG-welding: good burnishing: very good CuZn15 is used in electrical engineering, for metal goods as well as in jewelry industry, for metall hoses, pressure measuring instruments, signs, casings and suspension bodies. For the electrolytically tinned strip the coatings (Sn bright, Sn matt, Sn fuzed, SnPb) are listed by the application (better solderability, better corrosion resistance, reduction of the electrical contact resistance, better appearance) in the DIN EN 14436 : 2004-11 (Table 5)

Properties

General

PropertyTemperatureValue

Density

20.0 °C

8.73 - 8.8 g/cm³

Grain size

0.02 - 0.03 μm

Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

122 GPa

100.0 °C

119 GPa

200.0 °C

114 GPa

300.0 °C

109 GPa

400.0 °C

103 GPa

500.0 °C

94 GPa

600.0 °C

84 GPa

700.0 °C

74 GPa

Elongation A50

20.0 °C

50 %

Hardness, Vickers

20.0 °C

85 [-]

Poisson's ratio

20.0 °C

0.34 [-]

Shear modulus

20.0 °C

45 GPa

Tensile strength

20.0 °C

300 MPa

Yield strength Rp0.2

20.0 °C

125 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

23.0 °C

1.7E-5 - 2.1E-5 1/K

Typical for Wrought Copper Brass

Melting point

875 - 1075 °C

Typical for Wrought Copper Brass

Specific heat capacity

20.0 °C

377 - 380 J/(kg·K)

Thermal conductivity

20.0 °C

159 W/(m·K)

80.0 °C

167 W/(m·K)

120.0 °C

172 W/(m·K)

160.0 °C

176 W/(m·K)

200.0 °C

184 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

2.10E+7 - 2.11E+7 S/m

Electrical resistivity

20.0 °C

4.7E-8 Ω·m

Specific Electrical conductivity

36 % IACS

Chemical properties

PropertyValue

Aluminium

0.02 %

Copper

84 - 86 %

Iron

0.05 %

Lead

0.05 %

Nickel

0.3 %

Phosphorus

0.2 %

Tin

0.1 %


Metal

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  4. EN 1652 CuZn15 (CW502L) – Unhardenable Wrought Copper Alloy for Electrical & Jewelry Applications
  5. EN 1652 Grade CuZn15 (R410) – High-Strength, Corrosion-Resistant Copper Alloy
  6. EN 1652 CuZn37 (CW508L) – Premium Grade 37 Copper Alloy for Cold Forming & Electrical Applications
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  8. EN 1652 Grade CuZn36 G020 – High-Strength Wrought Copper Alloy for Precision Fabrication
  9. EN 1652 CuZn15 G010 – Versatile Unhardenable Copper Alloy for Strength, Conductivity & Weldability
  10. EN 1652 Grade CuZn15 G035 – High‑Strength, Corrosion‑Resistant Copper Alloy for Electrical and Jewelry Applications