C51100
C51100
Standard
| JIS | DIN | EN | ASTM/UNS/CDA | GB/T |
| C5111 | CuSn4 / 2.1016 | CuSn4 / CW450K | C51100 | / |
Merit
CuSn4 belongs to the copper-tin alloys. In the group of phosphor bronzes CuSn4 CuSn4 is the alloy with the highest electrical conductivity.It provides an excellent combination of strength, excellent formability and hardness. It has a good electrical conductivity and corrosion resistance.
Applications
Miniaturized Connectors, Contact Springs, Relais Springs, Terminals, Switch Parts Fuse Clips, Electronic Connectors,etc.
| Cu | Remainder |
| Sn | 3.5-4.5 |
| P | 0.01-0.4 |
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| Temper | Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation (%) | Hardness(HV) | Bending Test(90°)GW | Bending Test(90°)BW |
| R290 | 290-400 | max. 190 | min. 40 | 70-100 | 0 | 0 |
| R390 | 380-490 | min. 320 | min. 11 | 115-155 | 0 | 0 |
| R480 | 480-570 | min. 440 | min. 4 | 150-180 | 0 | 0 |
| R540 | 540-630 | min. 510 | min. 3 | 170-200 | 0.5 | 1.5 |
| R610 | min. 610 | min. 580 | – | min. 190 | 2 | 6 |
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) | 8.85 |
| Electrical conductivility IACS%(20℃)* | 21 |
| Modulus of elasticity (KN/mm²) | 120 |
| Coefficient of thermal expansion 10-6/K | 17.8 |
| Thermal conductivity W/(m*K) | 100 |
*value for the lowest temper class
JIS: C5111
DIN: CuSn4 / 2.1016
EN: CuSn4 / CW450K
UNS: C51100
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