C47940
Conforming to the ASTM B21 and AMS 4611 standards, the high leaded naval brass boasts remarkable thermal and electrical conductivity. Recognized for its heightened ductility and weldability, this material is also valued for its resistance to creeping and its minimal volatility when subjected to high vacuum conditions.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 63.00 | 66.00 |
| Pb | 1.00 | 2.00 |
| Sn | 1.20 | 2.00 |
| Fe | 0.10 | 1.00 |
| Total Others | – | 0.40 |
| Zn | Remainder | |
MECHANICAL PROPERTIES ACCORDING TO ASTM B21 (AS PER TEMPER HO2)
| Range (Inch) | From | To | UTS Min (ksi) | PS Min (ksi) | Elongation Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 0.059 | 0.500 | 58 | 30 | 18 | – | – |
| 0.500 | 1.000 | 56 | 30 | 20 | – | – | |
| 1.000 | 2.000 | 54 | 25 | 22 | – | – | |
| 2.000 | 2.952 | 50 | 25 | 25 | – | – | |
| Hex (A/F) | 0.118 | 0.500 | 58 | 30 | 18 | – | – |
| 0.500 | 1.000 | 56 | 30 | 20 | – | – | |
| 1.000 | 2.000 | 54 | 25 | 22 | – | – | |
| 2.000 | 2.756 | 50 | 25 | 25 | – | – | |
| Square (A/F) | 0.118 | 0.500 | 58 | 30 | 18 | – | – |
| 0.500 | 1.000 | 56 | 30 | 20 | – | – | |
| 1.000 | 2.000 | 54 | 25 | 22 | – | – | |
| 2.000 | 2.362 | 50 | 25 | 25 | – | – |
| Range (mm) | From | To | UTS Min (MPa) | PS Min (MPa) | Elongation Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 1.5 | 12 | 400 | 210 | 18 | – | – |
| 12 | 25 | 390 | 210 | 20 | – | – | |
| 25 | 50 | 375 | 175 | 22 | – | – | |
| 50 | 75 | 345 | 175 | 25 | – | – | |
| Hex (A/F) | 3 | 12 | 400 | 210 | 18 | – | – |
| 12 | 25 | 390 | 210 | 20 | – | – | |
| 25 | 50 | 375 | 175 | 22 | – | – | |
| 50 | 70 | 345 | 175 | 25 | – | – | |
| Square (A/F) | 3 | 12 | 400 | 210 | 18 | – | – |
| 12 | 25 | 390 | 210 | 20 | – | – | |
| 25 | 50 | 375 | 175 | 22 | – | – | |
| 50 | 60 | 345 | 175 | 25 | – | – |
| PHYSICAL PROPERTIES | |
| Densitylb/cu in. at 68 0F | 8.2g/cm3 |
| FABRICATION PROPERTIES | |
| No Fabrication Properties for this alloy. | |
