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EN 1652 CuZn20 (G010) – Premium Copper‑Zinc Alloy for High‑Performance Applications

CuZn20 (CW503L) is an unhardenable wrought alloy. High hardness and strength parameter are achievable by cold forming only. Thermal and electrical conductivity are worse than for CuZn15. 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 CuZn20 is used for metal goods, in jewelry industry and automotive electrics as well as for metall hoses and manometer. 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

8.67 - 8.7 g/cm³

Grain size

0.02 μm

Mechanical

PropertyTemperatureValue

Elastic modulus

20.0 °C

119 GPa

100.0 °C

116 GPa

200.0 °C

111 GPa

300.0 °C

106 GPa

400.0 °C

100 GPa

500.0 °C

91 GPa

600.0 °C

81 GPa

700.0 °C

71 GPa

Elongation A50

20.0 °C

50 %

Hardness, Vickers

20.0 °C

105 [-]

Poisson's ratio

20.0 °C

0.34 [-]

Shear modulus

20.0 °C

44 GPa

Tensile strength

20.0 °C

340 MPa

Yield strength Rp0.2

20.0 °C

190 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)

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)

Thermal conductivity

20.0 °C

142 W/(m·K)

Electrical

PropertyTemperatureValue

Electrical conductivity

20.0 °C

1.90E+7 S/m

Electrical resistivity

20.0 °C

5.3E-8 Ω·m

Specific Electrical conductivity

33 % IACS

Chemical properties

PropertyValue

Aluminium

0.02 %

Copper

79 - 81 %

Iron

0.05 %

Lead

0.05 %

Nickel

0.3 %

Phosphorus

0.2 %

Tin

0.1 %


Metal

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  2. EN 1652 Grade CuZn20 H120 – Premium Copper‑Zinc Alloy for High‑Performance Applications
  3. EN 1652 Grade CuZn20 H155 – Premium Unhardenable Copper Alloy for Precision Applications
  4. EN 1652 Grade CuZn20 R480 – High-Performance Copper Alloy for Electronics & Automotive
  5. EN 1652 CuZn20 H085: High‑Strength, Unhardenable Copper Alloy for Jewelry, Automotive, and Industrial Use
  6. EN 1652 Grade CuZn37 (G010) – Premium Unhardenable Wrought Copper Alloy
  7. EN 1652 CuZn20 (R400) – High-Strength, Unhardenable Wrought Alloy for Jewelry, Automotive & Electronics
  8. EN 1652 Grade CuZn20 R270 – High‑Strength Wrought Alloy for Automotive & Jewelry
  9. EN 1652 Grade CuZn20 R320 – High-Performance Copper Alloy for Industrial Applications
  10. EN 1652 CuZn33 G010 – Premium Unhardenable Wrought Copper Alloy