CuSn3Zn9
Standard designations
EN CW008A / UNS C10200
| Chemical composition | |
|---|---|
| Cu | Balance |
| Sn [%] | 3 |
| Zn [%] | 9 |
Description / applications
CuSn3Zn9 is a bronze with zinc content. CuSn3Zn9 is characterized by a favorable combination of very good cold formability with strength and hardness. This alloy possesses good corrosion resistance. Applications: stamped parts, connectors
| Physical properties¹ | |
|---|---|
| Density | 8.75 g/cm³ |
| Electrical conductivity | 14 m/Ω·mm² 24% IACS² |
| Thermal conductivity | 84 W/m·K |
| Thermal expansion coefficient | 18.4·10-6/K |
| E modulus | 118 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 | good |
| Stress crack corrosion | none |
| Mechanical properties | |||||
|---|---|---|---|---|---|
| Condition | Tensile strength Rm [MPa] | Yield strength Rp0.2 [MPa] | Elongation A50 [%] |
Hardness HV |
|
| R320/H80 | 320-380 | max. 230 | min. 25 | 80-110 | |
| R380/H110 | 380-430 | min. 200 | min. 16 | 110-140 | |
| R430/H140 | 430-520 | min. 330 | min. 6 | 140-170 | |
| R510/H160 | 510-600 | min. 430 | min. 3 | 160-190 | |
| R580/H180 | 580-690 | min. 520 | - | 180-210 | |
| R660/H200 | min. 660 | min. 610 | - | min. 200 |