C70250 CuNi3SiMg Alloy Foil Strip
CuNi3SiMg Alloy is a precipitation-hardening copper alloy that combines moderate conductivity, high strength, and good resistance to stress relaxation. C70250 (CuNi3SiMg) is a high-strength, high-conductivity copper alloy. In the later stages of the alloy manufacturing process, it undergoes secondary rolling, further improving the material's hardness and strength, while also enhancing conductivity and elongation. This alloy exhibits excellent elasticity, good corrosion resistance in industrial environments, and resistance to stress corrosion cracking.
Properties Of C70250 CuNi3SiMg Alloy Foil Strip
| Density(g/cm3) | 8.82 |
| Conductivity IACS%(20℃) | 40 |
| Modulus of elasticity(KN/mm2) | 130 |
| Thermal conductivity {W/(m*K)} | 190 |
| Coefficient of thermal expansion( 10-6/℃ 20/℃ ~100/℃) | 17.3 |
| Tensile strength(Rm,MPa) | 620-840 |
| Elongation A50(%) | 5-10 |
| Hardness(HV) | 180-260 |
Fabrication Properties Of C70250 CuNi3SiMg Alloy Foil Strip
| Cold formability | good |
| Machinability | no recommended |
| Soldering | fair |
| Resistance welding | fair |
| Gas shielded arc welding | good |
