EN 12163 CuZn5 R290 Alloy – Ideal for Electrical Components & Shock Absorbers
CuZn5 (CW500L) is an unhardenable wrought alloy. High hardness and strength parameter are achievable by cold forming only. CuZn5 has a favorable conductivity, resistance to atmospheric corrosion and is ideal for enamelling. Processing properties: warm forming: moderately cold forming: good machinability: unfavorable hard and soft soldering: very good TIG-welding: good burnishing: good The material is used for installation components in electrical engineering, for shock-absorber rods, metal goods as well as in jewelry and watches industry. 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
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.86 - 8.9 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | 20.0 °C | 127 GPa | |
Elongation | 20.0 °C | 15 % | |
Elongation A10 | 20.0 °C | 12 % | |
Elongation A100 | 20.0 °C | 10 % | |
Poisson's ratio | 20.0 °C | 0.34 [-] | |
Shear modulus | 23.0 °C | 40 GPa | Typical for Wrought Copper Brass |
Tensile strength | 20.0 °C | 290 MPa | |
Yield strength Rp0.2 | 20.0 °C | 250 MPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100.0 °C | 1.7E-5 1/K | |
300.0 °C | 1.8E-5 1/K | ||
Melting point | 875 - 1075 °C | Typical for Wrought Copper Brass | |
Specific heat capacity | 20.0 °C | 377 - 380 J/(kg·K) | |
100.0 °C | 386 J/(kg·K) | ||
200.0 °C | 398 J/(kg·K) | ||
Thermal conductivity | -200.0 °C | 128 W/(m·K) | |
20.0 °C | 234 - 243 W/(m·K) | ||
200.0 °C | 272 W/(m·K) | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 3.30E+7 S/m |
Specific Electrical conductivity | 57 % IACS |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.02 % |
Copper | 94 - 96 % |
Iron | 0.05 % |
Lead | 0.05 % |
Nickel | 0.3 % |
Tin | 0.1 % |
Metal
- EN 12163 CuZr TH Grade – High Strength Low‑Alloy Copper Alloy
- EN 12163 Grade CuBe2 M: High-Performance Hardenable Copper Alloy
- EN 12163 Grade CuZn10 M – High-Strength, Corrosion-Resistant Copper Alloy
- EN 12163 CuZn40 M: High-Performance Unhardenable Wrought Copper Alloy
- EN 12163: Grade CuZn33 M – High-Strength Unhardenable Wrought Copper Alloy
- EN 12163 CuZn5 H055 – Premium Copper‑Zinc Alloy for Electrical & Mechanical Applications
- EN 12163 Grade CuZn5 H085 – Premium CuZn5 Alloy for Electrical Engineering & Shock Absorbers
- EN 12163: CuZn5 H100 – High-Performance Copper Alloy for Electrical Engineering
- CuZn5 R350 – EN 12163 Grade Wrought Alloy for Electrical & Industrial Applications
- EN 12163 CuZn5 R240: High-Performance CuZn5 Alloy for Electrical Applications