CuZn15 (CW502L) – High-Strength, Unhardenable Wrought Alloy for Electrical and Jewelry Applications
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
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 8.73 - 8.8 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | 20.0 °C | 120 - 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 | |
Hardness, Vickers | 20.0 °C | 85 - 115 [-] |
Poisson's ratio | 20.0 °C | 0.34 [-] |
Shear modulus | 20.0 °C | 45 GPa |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
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
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 2.10E+7 - 2.20E+7 S/m |
Electrical resistivity | 20.0 °C | 4.7E-8 Ω·m |
Specific Electrical conductivity | 36 - 38 % IACS |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.02 % |
Copper | 84 - 86 % |
Iron | 0.05 % |
Lead | 0.05 % |
Nickel | 0.3 % |
Phosphorus | 0.2 % |
Tin | 0.1 % |
Metal
- EN 1652 Grade CuZn0.5 H085 – High-Quality Copper Alloy for Industrial Applications
- EN 1652 Grade CuZn40 (H085) – High‑Performance Copper Alloy
- EN 1652 CuZn15 Grade H055 – Premium Unhardenable Copper Alloy
- EN 1652 CuZn15 H125 Wrought Copper Alloy – High Strength & Excellent Electrical Conductivity
- EN 1652 CuZn15 (CW502L) – Unhardenable Wrought Copper Alloy for Electrical & Jewelry Applications
- EN 1652 CuZn20 H085: High‑Strength, Unhardenable Copper Alloy for Jewelry, Automotive, and Industrial Use
- EN 1652 Grade CuZn15 (R410) – High-Strength, Corrosion-Resistant Copper Alloy
- EN 1652 CuZn15 G010 – Versatile Unhardenable Copper Alloy for Strength, Conductivity & Weldability
- EN 1652 CuZn15 G020 – High‑Performance Unhardenable Wrought Alloy
- EN 1652 Grade CuZn15 G035 – High‑Strength, Corrosion‑Resistant Copper Alloy for Electrical and Jewelry Applications