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Contact SupplierPhosphorous Bronze Ingots cast as per IS:1458-1985 Reaffirmed 2006, Class -1, IS:28-1985 Or Latest Specifications having Grade -1, Grade -2, Grade – 3, Grade – 4, Grade – 5. Chemically they represent the following compositions as follows: -
Constituent | IS:1458-1985 Reaffirmed 2006 | Constituent | IS:28-1985 Or Latest Specifications | ||||
| Class 1 |
| Grade 1 | Grade 2 | Grade 3 | Grade 4 | Grade 5 |
Tin | 6.0 – 8.0 | Tin | 6.0 – 8.0 | 10.0 Min | 6.5 – 8.5 | 9.0 – 11.0 | 11.0 – 13.1 |
Lead | 0.5 Max | Phosphorous | 0.30 – 0.50 | 0.50 Min | 0.30 Min | 0.15 Max | 0.15 Min |
Zinc | 0.5 Max | Lead | 0.25 Max | 0.25 Max | 2.0 – 5.0 | 0.25 Max | 0.50 Max |
Phosphorous | 0.4- 0.6 | Zinc | 0.50 Max | 0.05 Max | 2.0 Max. | 0.05 Max | 0.30 Max |
Iron | 0.3 Max | Nickel | 0.70 Max | 0.10 Max | 1.0 Max | 0.25 Max | 0.50 Max |
Antimony | 0.1 Max | Iron | 0.30 Max | 0.10 Max |
|
| 0.15 Max |
Iron & Antimony |
| Aluminium | 0.01 Max | 0.01 Max |
|
| 0.01 Max |
Aluminium | 0.01 Max | Antimony | 0.10 Max |
|
|
|
|
Total of Other Elements including Iron & Antimony | 0.6 Max | Silicon | 0.02 Max | 0.02 Max |
|
| 0.02 Max |
Total Impurities | 1.20 Max | 0.60 Max | 0.50 Max | 0.80 Max | 0.20 Max | ||
Copper Plus Incidental Nickel | Remainder | Copper | Remainder | Remainder | Remainder | Remainder | Remainder |





