C67600 is a high tensile brass containing tin and manganese. Its principal characteristics are high strength, toughness and excellent resistance to corrosion. It characterized by excellent forgeability combined with good soldering and brazing properties.
CHEMICAL COMPOSITION
| Elements | Min (%) | Max (%) |
| Cu | 57.00 | 60.00 |
| Pb | 0.50 | 1.00 |
| Sn | 0.50 | 1.50 |
| Fe | 0.40 | 1.30 |
| Mn | 0.05 | 0.50 |
| Total Others | – | 0.50 |
| Zn | Remainder |
Mechanical Properties According To C67600 (As Per Temper HO2)
| Range (Inch) | From | To | UTS Min (Ksi) | PS Min (Ksi) | Elongation Min (%) | Hardness Min (HRB) | Hardness Max |
| Round (Dia) | 0.059 | 1.000 | 72 | 36 | 13 | – | – |
| 1.000 | 2.500 | 70 | 35 | 15 | – | – |
| 2.500 | 2.953 | 65 | 32 | 17 | – | – |
| Hex (A/F) | 0.118 | 1.000 | 72 | 36 | 13 | – | – |
| 1.000 | 2.500 | 70 | 35 | 15 | – | – |
| 2.500 | 2.756 | 65 | 32 | 17 | – | – |
| Square (A/F) | 0.118 | 1.000 | 72 | 36 | 13 | – | – |
| 1.000 | 2.362 | 70 | 35 | 15 | – | – |
| Rectangle (Thickness) | 0.118 | 1.000 | 72 | 36 | 13 | – | – |
| 1.000 | 1.968 | 70 | 35 | 15 | – | – |
| Range (mm) | From | To | UTS Min (Mpa) | PS Min (Mpa) | Elongation Min (%) | Hardness Min | Hardness Max |
| Round (Dia) | 1.5 | 25 | 500 | 250 | 13 | – | – |
| 25 | 65 | 450 | 240 | 15 | – | – |
| 65 | 75 | 450 | 220 | 17 | – | – |
| Hex (A/F) | 3 | 25 | 500 | 250 | 13 | – | – |
| 25 | 65 | 450 | 240 | 15 | – | – |
| 65 | 70 | 450 | 220 | 17 | – | – |
| Square (A/F) | 3 | 25 | 500 | 250 | 13 | – | – |
| 25 | 60 | 450 | 240 | 15 | – | – |
| Rectangle (Thickness) | 3 | 25 | 500 | 250 | 13 | – | – |
| 25 | 50 | 450 | 240 | 15 | – | – |
| PHYSICAL PROPERTIES |
| Melting Point – Liquidus°F | 1630 |
| Melting Point – Solidus°F | 1590 |
| Density lb/cu in. at 68°F | 0.302 |
| Electrical Conductivity % IACS at 68°F | 24 |
| Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F | 61 |
| Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) | 11.8 |
| Modulus of Elasticity in Tension ksi | 15000 |
| Modulus of Rigidity ksi | 5600 |
| FABRICATION PROPERTIES |
| Technique | Suitability |
| Soldering | Excellent |
| Brazing | Excellent |
| Oxyacetylene Welding | Good |
| Gas Shielded Arc Welding | Fair |
| Spot Weld | Good |
| Capacity for Being Cold Worked | Poor |
| Capacity for Being Hot Formed | Excellent |
| Forgeability Rating | 80 |
| Machinability Rating | 60 |
Typical Uses
- Industrial
- Clutch disks
- Shaftin
- Pump rods
- Fasteners
- Valve stem
- Valve bodies
- Balls
- Bushings
- Aircraft part
- Marine hardware
