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EN 12166 Grade CuZn10 H58 – High‑Strength Copper Alloy for Electrical and Jewelry Applications

CuZn10 (CW501L) is an unhardenable wrought alloy. High hardness and strength parameter are achievable by cold forming only. Thermal conductivity is lower than for CuZn5. Favorable electrical conductivity. Corrosion resistance is similar to pure copper. Processing properties: warm forming: moderately cold forming: good machinability: unfavorable hard and soft soldering: very good TIG-welding: good burnishing: good CuZn10 is used in electrical engineering, for metal goods as well as in jewelry and watches industry, for projectile casings and as cladding and enamelling material. 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

8.79 - 8.8 g/cm³

Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

124 GPa

100.0 °C

123 GPa

200.0 °C

118 GPa

300.0 °C

113 GPa

400.0 °C

107 GPa

500.0 °C

98 GPa

600.0 °C

88 GPa

700.0 °C

78 GPa

Poisson's ratio

20.0 °C

0.34 [-]

Shear modulus

20.0 °C

46 GPa

Tensile strength

20.0 °C

270 MPa

50.0 °C

263 MPa

100.0 °C

254 MPa

150.0 °C

243 MPa

200.0 °C

233 MPa

250.0 °C

223 MPa

300.0 °C

210 MPa

350.0 °C

193 MPa

400.0 °C

177 MPa

Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

200.0 °C

1.9E-5 1/K

Melting point

875 - 1075 °C

Typical for Wrought Copper Brass

Specific heat capacity

20.0 °C

376 - 377 J/(kg·K)

100.0 °C

398 J/(kg·K)

200.0 °C

410 J/(kg·K)

300.0 °C

419 J/(kg·K)

400.0 °C

431 J/(kg·K)

500.0 °C

444 J/(kg·K)

600.0 °C

452 J/(kg·K)

700.0 °C

465 J/(kg·K)

Thermal conductivity

20.0 °C

184 W/(m·K)

80.0 °C

197 W/(m·K)

120.0 °C

209 W/(m·K)

160.0 °C

218 W/(m·K)

200.0 °C

226 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

2.47E+7 - 2.50E+7 S/m

Electrical resistivity

20.0 °C

4.1E-8 Ω·m

Specific Electrical conductivity

43 % IACS

Chemical properties

PropertyValue

Aluminium

0.02 %

Copper

89 - 91 %

Iron

0.05 %

Lead

0.05 %

Nickel

0.3 %

Tin

0.1 %


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