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EN 1652 CuZn10 R240 – Premium Copper Alloy for Electrical, Jewelry & Industrial Use

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

Elongation

20.0 °C

45 - 47 %

Elongation A100

20.0 °C

43 %

Elongation A11.3

20.0 °C

45 %

Elongation A50

20.0 °C

36 %

Poisson's ratio

20.0 °C

0.34 [-]

Shear modulus

20.0 °C

46 GPa

Tensile strength

20.0 °C

240 - 290 MPa

Yield strength Rp0.2

20.0 °C

140 - 150 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 %

Phosphorus

0.2 %

Tin

0.1 %


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