C6783
C6783 Spec SheetHigh 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 |
| Zn | Remainder | |
Mechanical properties according to JIS H3250 Grade C6782 (as per temper BD)
| Range (mm) | UTS Min (MPa) |
UTS Max (MPa) |
PS Min (MPa) |
Elongation Min (%) |
Hardness Min (HRB) |
Hardness Max (HRB) |
||
|---|---|---|---|---|---|---|---|---|
| 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 | |
|---|---|
| Technique | Suitability |
| Soldering | Poor |
| Capacity for Being Hot Worked | Good |
| Machinability Rating | 30% |
| Resistance to Corrosion | Excellent |
| Suitability for Soldering | Excellent |
Typical Uses
Marine Hardware
Valve seats
Synchronizer ring
Propeller shaft
Pump shaft
fasteners
