Cast C67400
Information
Product description: Manganese Bronze
TEMPERS: Extruded and Drawn
Solids: 3/4" to 3" O.D.
HEX: 3/8" to 2" O.D.
Rectangles: Consult Mill
Standard lengths: 144”
Typical uses
Industrial: bushings, cams, chain guides, food conveyor chain, gears, shafts, wear plates
OTHER: connecting rods
Similar or equivalent specification
| CDA | ASTM | SAE | AMS | Federal | Military | Other |
|---|---|---|---|---|---|---|
| C67400 | J461 J463 |
Chemical composition
| Cu% | Pb% | Sn% | Zn% | Fe% | Ni%1 | Al% | Mn% | Si% |
|---|---|---|---|---|---|---|---|---|
| 57.00-60.00 | 0.50 | 0.30 | Rem. | 0.35 | 0.25 | 0.50-2.00 | 2.00-3.50 | 0.50-1.50 |
Chemical composition according to SAE J463
¹Ni value includes Co
Note: Single values represent maximums.
Machinability
| Copper alloy UNS no. | Machinability rating | Density (lb / in³ at 68 °F) |
|---|---|---|
| C67400 | 30 | 0.292 |
Mechanical properties
Mechanical properties according to SAE J463
Extruded and Drawn
Size Range: Up 1" Inclusive
| Tensile strength, min | Yield strength, at 0.5% extension under load, min | Elongation, in 2 in. or 50 mm min | Rockwell "B" Hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | min HRB | |
| 78 | 540 | 40 | 275 | 8 | 84 | |
Size Range: Over 1" to 2" Inclusive
| Tensile strength, min | Yield strength, at 0.5% extension under load, min | Elongation, in 2 in. or 50 mm min | Rockwell "B" Hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | min HRB | |
| 75 | 515 | 40 | 275 | 10 | 80 | |
Size Range: Over 2" to 3" Inclusive
| Tensile strength, min | Yield strength, at 0.5% extension under load, min | Elongation, in 2 in. or 50 mm min | Rockwell "B" Hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | min HRB | |
| 70 | 485 | 36 | 250 | 12 | 78 | |
Physical properties
| US Customary | Metric | |
|---|---|---|
| Melting point - liquidus | 1625 °F | 885 °C |
| Melting point - solidus | 1590 °F | 866 °C |
| Density | 0.292 lb/in³ at 68 °F | 8.08 gm/cm³ at 20 °C |
| Specific gravity | 8.08 | 8.08 |
| Electrical conductivity | 23% IACS at 68 °F | 0.13 MegaSiemens/cm at 20 °C |
| Thermal conductivity | 58 Btu/sq ft/ft hr/°F at 68 °F | 100.5 W/m at 20 °C |
| Coefficient of thermal expansion 68-572 | 11 · 10-6 per °F (68-572 °F) | 19 · 10-6 per °C (20-300 °C) |
| Specific heat capacity | 0.09 Btu/lb/°F at 68 °F | 377.1 J/kg at 20 °C |
| Modulus of elastic in tension | 16000 ksi | 110317 MPa |
| Modulus of Rigidity | 6000 ksi | 41369 MPa |
Fabrication properties
| Technique | Suitability |
|---|---|
| Soldering | Fair |
| Brazing | Good |
| Oxyacetylene welding | Not recommended |
| Gas shielded arc welding | Fair |
| Coated metal arc welding | Not recommended |
| Spot Weld | Good |
| Seam Weld | Good |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Poor |
| Capacity for Being Hot Formed | Excellent |
| Forgeability Rating | 100 |
| Machinability rating | 30 |
Thermal properties
| Treatment | Minimum * | Maximum * |
|---|---|---|
| Annealing | 800 | 1100 |
| Hot Treatment | 1100 | 1250 |
* Temperature is measured in Fahrenheit