ASTM B271 Tin Bronze and Leaded Tin Bronze UNS C90500
Standard Specification for Copper-Base Alloy Centrifugal Castings
Group - Non-Ferrous Copper Alloy
Sub Group - ASTM B271 Copper-Base Alloy Centrifugal Castings
Application - Intended for Valve, Pump, General Engineering, Automotive and Other Industries
Grade Belongs to the Industry - Rod, Bar, Tube and Shapes
| Chemical Composition | ||
|---|---|---|
| Tin | Sn % | 9.000 - 11.000 |
| Lead | Pb % | 0.300 max. |
| Zinc | Zn % | 1.000 - 3.000 |
| Iron | Fe % | 0.200 max. |
| Ni + Co | Ni% + Co% | 1.000 max. |
| Aluminium | Al % | 0.005 max. |
| Silicon | Si % | 0.005 max. |
| Antimony | Sb % | 0.200 max. |
| Sulphur | S % | 0.050 max. |
| Phosphorus | P % | 0.050 max. |
| Copper | Cu % | 86.000 - 89.000 |
| - | - | - |
| - | - | - |
| - | - | - |
| - | - | - |
| Heat Treatment |
|---|
| As-Cast |
| Mechanical Properties | |
|---|---|
| Tensile Strength in Mpa | 276 min. |
| Yield Strength in Mpa | 124 min. |
| Elongation in % | 20 min. |
| Reduction of Area in % | - |
| Hardness in BHN | - |
| Impact in Joule | - |
Cross Reference Table
| Material | Standard | Country | Grade Belong to the Industry |
|---|---|---|---|
| B30 C90500 | ASTM | USA | Ingot and Casting |
| B271 C90500 | ASTM | USA | Casting |
| SB-505 C90500 | ASME | USA | Casting |
| SB-584 C90500 | ASME | USA | Casting |
| CA905 | SAE | USA | Casting |
| SAE62 | SAE | USA | Casting |
| 4845 | SAE | USA | Casting |