Essential details
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Product Introduction
Product description
Summary: C72700 is a time strengthened copper nickel tin alloy, which is a high-end conductive elastic material with high elasticity, low stress relaxation, and high stability. This alloy is wrinkle free, environmentally friendly and safe, with excellent strength, high conductivity and excellent stress relaxation resistance. Its dimensional stability far exceeds that of conventional phosphor bronze and tin bronze, making it an upgraded alternative material for precision electronic elastic components.
Main features and advantages
1. Ultra high elasticity and dimensional stability: Through fine aging precipitation strengthening, the material has a high elastic limit and minimal deformation. It is not easy to relax or deform under continuous pressure and cyclic loads for a long time, and has excellent structural stability under normal and medium temperature environments, solving the problem of fatigue collapse of ordinary copper alloy shrapnel.
2. Excellent stress relaxation resistance: It can still maintain stable contact pressure under high temperature and long-term pressure conditions, and its electrical contact reliability is far superior to phosphor bronze and brass. It is particularly suitable for precision terminals and spring plate structures with long-term electricity and continuous contact.
3. Good electrical and thermal conductivity: With moderate to high conductivity, it can meet the needs of precision electronic components with small and medium currents. At the same time, it has uniform thermal conductivity, low working temperature rise, and stronger overall stability.
4. Excellent corrosion resistance and oxidation resistance: resistant to atmospheric corrosion, sweat corrosion, high and low temperature oxidation, the surface is not easily oxidized and blackened, the contact resistance is stable, and it is suitable for long-term indoor and outdoor service scenarios.
Summary: C72700 is a time strengthened copper nickel tin alloy, which is a high-end conductive elastic material with high elasticity, low stress relaxation, and high stability. This alloy is wrinkle free, environmentally friendly and safe, with excellent strength, high conductivity and excellent stress relaxation resistance. Its dimensional stability far exceeds that of conventional phosphor bronze and tin bronze, making it an upgraded alternative material for precision electronic elastic components.
Main features and advantages
1. Ultra high elasticity and dimensional stability: Through fine aging precipitation strengthening, the material has a high elastic limit and minimal deformation. It is not easy to relax or deform under continuous pressure and cyclic loads for a long time, and has excellent structural stability under normal and medium temperature environments, solving the problem of fatigue collapse of ordinary copper alloy shrapnel.
2. Excellent stress relaxation resistance: It can still maintain stable contact pressure under high temperature and long-term pressure conditions, and its electrical contact reliability is far superior to phosphor bronze and brass. It is particularly suitable for precision terminals and spring plate structures with long-term electricity and continuous contact.
3. Good electrical and thermal conductivity: With moderate to high conductivity, it can meet the needs of precision electronic components with small and medium currents. At the same time, it has uniform thermal conductivity, low working temperature rise, and stronger overall stability.
4. Excellent corrosion resistance and oxidation resistance: resistant to atmospheric corrosion, sweat corrosion, high and low temperature oxidation, the surface is not easily oxidized and blackened, the contact resistance is stable, and it is suitable for long-term indoor and outdoor service scenarios.
| Chemical composition (wt,%): | |||||||
| Ni+Co | Sn | Fe | Mn | Pb | Mg | Nb | Cu |
| 8.5-9.5 | 5.5-6.5 | ≤0.5 | 0.05-0.3 | <0.02 | ＜0.15 | ＜0.1 | Rem. |
| Physical and Mechanical property: | |||||
| Temper | Tensile Strength | Yield Strength | Elongation | Hardness | |
| ksi | MPa | Mpa | min.%,4D | HV0.5 | |
| TX00 | - | 830-980 | >590 | ＞15 | ＞250 |
| TS02 | - | 930-1080 | >685 | ＞10 | ＞250 |
| TS04 | - | ＞1060 | ＞785 | ＞3 | ＞320 |