CuSn10
Standard designation
EN not standardised / UNS C52400
| Chemical composition | |
|---|---|
| Cu | Rest |
| Sn [%] | 10 |
| P [%] | 0.1 |
Description / applications
CuSn10 is one of the copper-tin alloys. CuSn10 is the material with the highest strength within the bronze group. Applications: components for the electronics industry, connectors, contact springs, relay springs, leaf springs
| Physical properties¹ | |
|---|---|
| Density | 8.75 g/cm³ |
| Electrical conductivity | 6.4 m/Ω·mm² 11% IACS² |
| Thermal conductivity | 50 W/m·K |
| Thermal expansion coefficient | 18.4·10-6/K |
| E modulus | 110 GPa³ |
| ¹Approximate values in soft state, measured at ambient temperature ²IACS = International Annealed Copper Standard ³1 GPa = 1 kN/mm² |
| Processing information | |
|---|---|
| Weldability | good |
| Solderability | very good |
| Stress crack corrosion | none |
| Mechanical properties | |||||
|---|---|---|---|---|---|
| Condition | Tensile strength Rm [MPa] | Yield strength Rp0.2 [MPa] | Elongation A50 [%] |
Hardness HV |
|
| R400/H120 | 400-500 | max. 200 | min. 55 | 120-150 | |
| R480/H140 | 480-560 | min. 325 | min. 40 | 140-170 | |
| R550/H170 | 550-650 | min. 410 | min. 30 | 170-200 | |
| R650/H200 | 650-750 | min. 550 | min. 18 | 200-230 | |
| R740/H220 | 740-830 | min. 680 | min. 9 | 220-250 | |
| R790/H235 | 790-890 | min. 740 | min. 4 | 235-270 | |
| R830/H250 | > 830 | min. 780 | min. 2 | > 250 |