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to Properties of copper alloys
(submitted by the website administration)
| Cast copper alloy C90300 (Tin Bronze) | ||||
| Chemical composition: Sn=8.3%, Zn=4.0%, Cu=87.5% | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 8.80 *10³ | kg/m³ | 549 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 96.5 | GPa | 14000 | ksi |
| Thermal expansion (20 ºC) | 18.0*10-6 | ºCˉ¹ | 10.0*10-6 | in/(in* ºF) |
| Specific heat capacity | 377 | J/(kg*K) | 0.090 | BTU/(lb*ºF) |
| Thermal conductivity | 74.8 | W/(m*K) | 518 | BTU*in/(hr*ft²*ºF) |
| Electric resistivity | 14.5*10-8 | Ohm*m | 14.5*10-6 | Ohm*cm |
| Tensile strength (sand cast) | 310 | MPa | 45000 | psi |
| Yield strength (sand cast) | 145 | MPa | 21000 | psi |
| Elongation (sand cast) | 30 | % | 30 | % |
| Hardness (sand cast) | 70 | HB(500) | 70 | HB(500) |
| Liquidus temperature | 1000 | ºC | 1832 | ºF |
| Solidus temperature | 854 | ºC | 1570 | ºF |