C51900
C51900
Standard
| JIS | DIN | EN | ASTM/UNS/CDA | GB/T |
| C5191 | CuSn6 / 2.1020 | CuSn6 / CW452K | C51900 | / |
Merit
This bronze alloy with 6 % tin is characterized by its adequate electrical conductivity, cold formability,its high mechanical strength and its good spring properties. CuSn6 is resilient towards corrosion and is well suited for soldering. It even provides reasonable thermal stability.
Applications
Stamped parts, Connectors, Contact springs, Spring elements, Ultra high strength spring elements, Membranes, Switch elements, Fixed contacts,etc.
JIS: C5191
DIN: CuSn6 / 2.1020
EN: CuSn6 / CW452K
UNS: C51900
- Sophia
- +86-21-62968227
- sophia@kinmachi.com
- candy_wu@kinmachi.com
| Cu | Remainder |
| Sn | 5.0-7.0 |
| p | 0.01-0.4 |
| Temper | Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation (%) | Hardness(HV) | Bending Test(90°)GW | Bending Test(90°)BW |
| R350 | 350-435 | max. 300 | min. 45 | 80-120 | 0 | 0 |
| R420 | 420-520 | min. 360 | min. 17 | 125-170 | 0 | 0 |
| R500 | 500-590 | min. 450 | min. 8 | 160-190 | 0 | 0 |
| R560 | 560-650 | min. 500 | min. 5 | 180-210 | 0.5 | 1 |
| R640 | 640-730 | min. 600 | min. 3 | 200-230 | 1 | 3 |
| R720 | min. 720 | min. 690 | – | min. 210 | 2 | 7 |
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) | 8.8 |
| Electrical conductivility IACS%(20℃)* | 13 |
| Modulus of elasticity (KN/mm²) | 118 |
| Coefficient of thermal expansion 10-6/K | 18.5 |
| Thermal conductivity W/(m*K) | 75 |
*value for the lowest temper class