EN 12163 CuZn33 R310 – Premium Grade Alloy for High-Performance Applications
CuZn33 (CW506L) is an unhardenable wrought alloy. High hardness and strength parameter are achievable by cold forming only. Thermal and electrical conductivity are lower than for CuZn30. Corrosion resistance is similar to pure copper. Processing properties: warm forming: good cold forming: very good machinability: moderately hard and soft soldering: very good TIG-welding: good burnishing: very good CuZn33 is used for deep drawing components, metal goods, watch parts, polishing sheet, wire mesh, cooler strips, tubular rivets and as etching brass. 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 | 8.5 g/cm³ |
Mechanical
| Property | Temperature | Value |
|---|---|---|
Elastic modulus | 20.0 °C | 112 GPa |
Elongation | 20.0 °C | 27 % |
Elongation A10 | 20.0 °C | 24 % |
Elongation A100 | 20.0 °C | 20 % |
Poisson's ratio | 20.0 °C | 0.34 [-] |
Shear modulus | 20.0 °C | 40 GPa |
Tensile strength | 20.0 °C | 310 MPa |
Yield strength Rp0.2 | 20.0 °C | 120 MPa |
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 J/(kg·K) | |
Thermal conductivity | 20.0 °C | 121 W/(m·K) |
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical conductivity | 20.0 °C | 1.55E+7 - 1.60E+7 S/m |
Electrical resistivity | 20.0 °C | 6.5E-8 Ω·m |
Specific Electrical conductivity | 28 % IACS |
Chemical properties
| Property | Value |
|---|---|
Aluminium | 0.02 % |
Copper | 66 - 68.5 % |
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 CuZn33 M – High-Strength Unhardenable Wrought Copper Alloy
- EN 12163 CuZn33 (CW506L) – Premium Grade for Cold‑Formed, High‑Strength Wrought Alloy
- EN 12163 CuZn33 H115 – High-Performance Copper Alloy for Precision Components
- EN 12163 CuZn33 (H145) – High‑Strength Unhardenable Copper Alloy
- EN 12163 Grade CuZn33 R460 – High-Strength Unhardenable Copper Alloy for Precision Applications
- EN 12163 Grade CuZn36 R310 – Premium Unhardenable Copper Alloy for High-Performance Applications
- EN 12163 Grade CuZn37 R310 – High-Strength Unhardenable Copper Alloy for Cold Forming
- EN 12163 Grade CuZn28 (R310) – Premium High‑Strength Copper Alloy
- EN 12163 CuZn33 R370 – Premium Copper Alloy for High-Performance Applications