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Adding Sn, Ni, and other trace elements to copper as the matrix gives it high strength, elasticity, and excellent stress relaxation performance. Commonly used for lead frames, automotive terminals, connectors, etc.
| Grade | Chemical composition（%）≤ | Thickness (mm) |
|||||
| ASTM | Cu | Sn | Ni | P | Zn | Other | 0.1-3.0 |
| C19040 | Balance | 1.0-2.0 | 0.7-0.9 | 0.02-0.09 | 0.01-0.3 | ≤1.0 | |
| Physical properties | |||||||
| Density (g/cm³) |
Modulus of elasticity (GPa) |
Thermal expansion coefficient (×10-6/K) |
Electrical conductivity (%IACS) |
Thermal conductivity W(m·K) |
|||
| 8.9 | 130 | 17 | 30 | 140 | |||
| 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 | |||
| H04 | 155-180 | 500-590 | 480-565 | ≥8 | 0 | 0.5 | |
| H06 | 160-195 | 540-630 | 525-610 | ≥6 | 0.5 | 1 | |
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
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