On the basis of phosphorus bronze, trace alloying elements are added to form Fe-P and Ni Si strengthening phases, which maintain high conductivity while possessing high performance. The wear resistance, high temperature resistance, stress relaxation resistance, and corrosion resistance are far superior to tin phosphorus bronze, and the cost advantage is greater. It is widely used in electronic and electrical connectors, connectors, switch parts, terminal components, sliding pieces, clips, etc.
| Grade | Chemical composition（%） | Thickness (mm) |
|||||
| GB | ASTM | JIS | Cu | Ni | P | Sn | 0.2-3.0 |
| QSn2.5 | C50710 | C5071 | Balance | 0.1-0.4 | 0.03-0.1 | 1.8-2.5 | |
| Physical properties | |||||||
| Density (g/cm³) |
Modulus of elasticity (GPa) |
Thermal expansion coefficient (×10-6/K) |
Electrical conductivity (%IACS) |
Thermal conductivity W(m·K) |
|||
| 8.8 | 120 | 17 | 28 | 150 | |||
| Mechanical properties | Bend properties | |||||
| Temper | Hardness HV |
Tension test | 90°R/T（Thick＜0.8mm） | |||
| Tensile Strength Rm/MPa |
Yield Strength MPa |
Elongation % |
Good way | Bad way | ||
| H02 | 140-170 | 430-530 | ≥330 | ≥10 | 0 | 0 |
| H04 | 160-190 | 520-590 | ≥450 | ≥3 | 0.5 | 1 |
| H06 | 180-210 | 580-660 | ≥580 | ≥3 | 1 | 1.5 |
FAQ
Q: How long is your delivery time?
A: Generally it is within 15 days if the goods are in stock. or it is less than 30 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples ?
A: Yes, we could offer the sample
Q: What ls your terms of payment
A.30% T/T in advance ,balance before shipment. And the price depends on the material and the quantity
If you have another question, please feel free to contact us.
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