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(submitted by the website administration)
| Cast copper alloy C85500 (Yellow Brass) | ||||
| Chemical composition: Zn=41.0%, Cu=69% | ||||
| Property | Value in metric unit | Value in US unit | ||
| Density | 8.41 *10³ | kg/m³ | 525 | lb/ft³ |
|---|---|---|---|---|
| Modulus of elasticity | 103 | GPa | 15000 | ksi |
| Thermal expansion (20 ºC) | 21.2*10-6 | ºCˉ¹ | 11.8*10-6 | in/(in* ºF) |
| Specific heat capacity | 377 | J/(kg*K) | 0.090 | BTU/(lb*ºF) |
| Thermal conductivity | 116 | W/(m*K) | 804 | BTU*in/(hr*ft²*ºF) |
| Electric resistivity | 6.6*10-8 | Ohm*m | 6.6*10-6 | Ohm*cm |
| Tensile strength (sand cast) | 414 | MPa | 60000 | psi |
| Yield strength (sand cast) | 159 | MPa | 23000 | psi |
| Elongation (sand cast) | 40 | % | 40 | % |
| Hardness (sand cast) | 55 | RB | 55 | RB |
| Tensile strength (perm. mold) | 371 | MPa | 54000 | psi |
| Yield strength (perm. mold) | 160 | MPa | 23000 | psi |
| Elongation (permanent mold) | 34 | % | 34 | % |
| Hardness (permanent mold) | 53 | RB | 53 | RB |
| Liquidus temperature | 900 | ºC | 1652 | ºF |
| Solidus temperature | 890 | ºC | 1634 | ºF |
