C70250 WIRE
C70250 WIRE
Standard
| JIS | DIN | EN | ASTM/UNS/CDA | GB/T |
| C7025 | CuNi3SiMg | CuNi3SiMg | C70250 | / |
Merit
Good corrosion resistance in nature atmosphere and industrial atmosphere. It is good at stress corrosion cracking.
Applications
Components for electrical industry connectors Relay springs Springs Semiconductor components
| Cu | min. 96.2 |
| Ni | 2.2-4.2 |
| Si | 0.25-1.2 |
| Mg | 0.05-0.3 |
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| Temper | Diameter(mm) | Tensile Strength(MPa) min | Tensile Strength(MPa) max | Hardness(HV) | Bending Test(90°)GW | Bending Test(90°)BW |
| 1/2H | 0.4-1.6 | 450 | 610 | – | – | – |
| H | 0.4-1.0 | 685 | 805 | – | – | – |
Physical properties of the above materials are conventional performance indicators.If you have some special requirements,(for example property and tolerance).please contact Kinmachi Company directly，we will give you professional assessments and answers.
| Density (g/cm³) | 8.82 |
| Electrical conductivility IACS%(20℃)* | 40 |
| Modulus of elasticity (KN/mm²) | 127 |
| Coefficient of thermal expansion 10-6/K | 17.7 |
| Thermal conductivity W/(m*K) | 190 |
*value for the lowest temper class
JIS: C7025
DIN: CuNi3SiMg
EN: CuNi3SiMg
UNS: C70250
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