C67300 Manganese Bronze
SAE J461, SAE J463
This is a high strength leaded silicon manganese bronze with typically good bearing qualities. This alloy maintains high impact resistance with excellent machinability making it well suited for clutch bearings, shaft bushings, sleeve bearings, thrust bearings, pump parts, drive shafts, bearing pins, wear plates, gears and cams. Resists squashing out under high loads and extreme wear applications.
Typical Uses for C67300 Manganese Bronze:
Typical Applications
FASTENERS: Fasteners, Lead Screw Nuts
INDUSTRIAL: Gears and Cams, Wear Plates, Bushings, Seal Rings, Idler Pins, Piston Heads, Brearing Pins, Thrust Bearings, Sleeve Bearings, Propeller Shafts, Shaft Bushings, Clutch Bearings, Drive Shafts, Spindles, Pump Parts, Bearings
MARINE: Hardware, Valve Seats
OTHER: Connecting Rods
C67300 Typical uses
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.
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% | Ni%1 | Al% | Mn% | Si% | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
Chemical composition according to SAE J463 1Ni value includes Co. Note: Single values represent maximums. | |||||||||||
| 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 | |||
Machinability
| Copper alloy UNS No. | Machinability rating | Density (lb/in3 at 68 °F) |
|---|---|---|
| C67300 | 70 | 0.300 |
Mechanical properties
C67300
H02 half hard
Size range: up to 1″ 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 | |
| 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 4x Diameter or Specimen Thickness, min | Rockwell “B” hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | min HRB | |
| 55 | 380 | 30 | 205 | 18 | 65 | |
Physical properties
Physical properties provided by CDA | |||||||||||
| 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 elasticity in tension | 17000 ksi | 117212 MPa | |||||||||
Fabrication properties
Fabrication properties provided by CDA | |||||||||||
| Technique | Suitability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Machinability rating | 70 | ||||||||||
Common fabrication processes
Hot forging and pressing, machining
Common fabrication processes provided by CDA
