Material ‐ ASTM B427 C90700
Standard Specification for Gear Bronze Alloy Casting
Group - Non ‐ Ferrous Copper Alloy
Sub Group - ASTM B427 Gear Bronze Alloy Casting
Application - Intended for Valve, Pump, General Engineering, Automotive and Other Industries
Grade Belongs to the Industry - Casting
| Chemical Composition | ||
|---|---|---|
| Aluminium | Al % | 0.005 max. |
| Iron | Fe % | 0.150 max. |
| Ni + Co | Ni% + Co% | 0.500 max. |
| Phosphorus | P % | 0.300 max. |
| Lead | Pb % | 0.500 max. |
| Sulphur | S % | 0.050 max. |
| Antimony | Sb % | 0.200 max. |
| Silicon | Si % | 0.005 max. |
| Tin | Sn % | 10.000 ‐ 12.000 |
| Zinc | Zn % | 0.500 max. |
| Copper | Cu % | 88.000 ‐ 90.000 |
| ‐ | ‐ | ‐ |
| ‐ | ‐ | ‐ |
| ‐ | ‐ | ‐ |
| ‐ | ‐ | ‐ |
| Heat Treatment |
|---|
| As ‐ Cast |
| Mechanical Properties | |
|---|---|
| Tensile Strength in Mpa | 241 ‐ 345 |
| Yield Strength in Mpa | 117 ‐ 193 |
| Elongation in % | 10 min. |
| Reduction of Area in % | ‐ |
| Hardness in HB | 65 ‐ 95 |
| Impact in Joule | ‐ |
Cross Reference Table
| Material | Standard | Country | Grade Belong to the Industry |
|---|---|---|---|
| C90700 | UNS | USA | Rod, Bar, Tube and Shapes |
| B30 C90700 | ASTM | USA | Ingot and Casting |
| B505 C90700 | ASTM | USA | Casting |
| SB ‐ 505 C90700 | ASME | USA | Casting |
| CA907 | SAE | USA | Casting |
| SAE 65 | SAE | USA | Casting |
| CACIn502 | KS | Korea | Ingot and Casting |