High Tensile Brass are alloys of Copper and Zinc. C6783 is a duplex or alpha/beta alloy. Brass alloy C6783 is a versatile high strength, hot workable, machinable engineering alloy sometimes referred to as a Manganese Bronze or High Tensile Brass.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 55.00 | 59.00 |
| Pb | – | 0.50 |
| Fe | 0.20 | 1.50 |
| Al | 0.20 | 2.00 |
| Mn | 1.00 | 3.00 |
| Total Others | – | – |
| Zn | Remainder |
Mechanical Properties According To JIS H3250 Grade C6782 (As Per Temper BD)
| Range (MM) | Form | To | UTS Min (Mpa) | PS Min (Mpa) | ELo Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 6 | 50 | 540 | – | 12 | – | – |
| Hex (A/F) | 6 | 50 | 540 | – | 12 | – | – |
| Square (A/F) | 6 | 50 | 540 | – | 12 | – | – |
| Rectangle (Thickness) | 6 | 50 | 540 | – | 12 | – | – |
| PHYSICAL PROPERTIES |
| Specific Gravity | 8.63 |
| FABRICATION PROPERTIES |
| Capacity for being Cold formed | Poor |
| Capacity for being Hot worked | Good |
| Machinability Ration | 30% |
| Resistance to Corrosion | Excellent |
| Suitability for soldering | Excellent |
TYPICAL USES
- Marine hardware
- Valve seats
- Synchronizer ring
- Propeller shaft
- Pump shaft
- Fasteners
- Lead screw nuts
