Cast C67300
Tough and corrosion resistant, C67300 manganese bronze, also known as C673, is a high tensile bronze ideal for high-load, low-speed applications that require a combination of outstanding wear characteristics and high bearing strength.
Information
PRODUCT DESCRIPTION: Manganese Bronze
TEMPERS: H02 Half Hard
SOLIDS: 3/4" to 3" O.D.
HEX: Consult Mill
RECTANGLES: Consult Mill
STANDARD LENGTHS: 144”
Typical Uses
FASTENERS: fasteners, lead screw nuts
INDUSTRIAL: bearings, bearings (pins) bushings, clutch bearings, drive shafts, gears and cams, idler pins, piston heads, propeller shafts, pump parts, seal rings, shaft bushings, sleeve bearings, spindles, thrust bearings, wear plates
MARINE: hardware, valve seats
OTHER: connecting rods
Similar or Equivalent Specification
| CDA | ASTM | SAE | AMS | Federal | Military | Other |
|---|---|---|---|---|---|---|
| C67300 | J461 J463 |
Chemical Composition
| Cu% | Pb% | Sn% | Zn% | Fe% | Al%1 | Al% | Mn% | Si% |
|---|---|---|---|---|---|---|---|---|
| 58.00-63.00 | 0.40-3.00 | 0.30 | Rem. | 0.50 | 0.25 | 0.25 | 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) |
|---|---|---|
| C67300 | 70 | 0.300 |
Mechanical Properties
Mechanical Properties according to SAE J463
H02 Half Hard
Size Range: Up 1" Inclusive
| Tensile Strength, min | Yield Strength, at 0.5% Extension Under Load, min | Elongation, 4x Diameter or Specimen Thickness, min | Rockwell "B" Hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | min HRB | |
| 65 | 448 | 40 | 276 | 12 | 70 | |
Size Range: Over 1" to 3" Inclusive
| Tensile Strength, min | Yield Strength, at 0.5% Extension Under Load, min | Elongation, in 4x Diameter or Specimen Thickness, min | Rockwell "B" Hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | min HRB | |
| 58 | 400 | 35 | 241 | 15 | 70 | |
Size Range: Over 3"
| Tensile Strength, min | Yield Strength, at 0.5% Extension Under Load, min | Elongation, in 4D, min | Rockwell "B" Hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | min HRB | |
| 55 | 380 | 30 | 205 | 18 | 65 | |
Physical Properties
| US Customary | Metric | |
|---|---|---|
| Melting Point - Liquidus | 1605 °F | 874 °C |
| Density | 0.3 lb/in³ at 68 °F | 8.3 gm/cm³ at 20 °C |
| Specific Gravity | 8.3 | 8.3 |
| Electrical Conductivity | 22% IACS at 68 °F | 0.13 MegaSiemens/cm at 20 °C |
| Thermal Conductivity | 55 Btu/sq ft/ft hr/°F at 68 °F | 95 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) |
| Modulus of Elastic in Tension | 17000 ksi | 117212 MPa |
Fabrication Properties
| Technique | Suitability |
|---|---|
| Machinability Rating | 70 |