C67300 Manganese Bronze Alloy

C67300 manganese bronze is a high-strength wrought alloy that resists corrosion well. It works best in high-load applications when you need excellent wear resistance.

Many industries use C67300, including industrial and marine. Common applications include:

  • Manganese Bronze Bearings
  • Manganese Bronze Bushings
  • Manganese Bronze Cams
  • Manganese Bronze Drive Shafts
  • Manganese Bronze Fasteners
  • Manganese Bronze Gears
  • Manganese Bronze Idler Pins
  • Manganese Bronze Lead Screw Nuts
  • Manganese Bronze Piston Heads
  • Manganese Bronze Propeller Shaft
  • Manganese Bronze Seal Rings
  • Manganese Bronze Wear Plates

Diversified Bronze has solid and cored manganese bronze bars in 144" lengths. Other lengths and non-standard sizes are available.

Technical Details

C67300 is made up of 58-63% copper, 2.0-3.5% manganese, 0.50-1.5% silicon, and 0.5% iron. The best welding techniques include:

  • Brazing
  • Butt
  • Coated-Shielded Arc
  • Gas-Shielded Arc
  • Oxyacetylene
  • Seam
  • Soldering
  • Spot

C67300 Manganese Bronze Alloy Properties

Physical
Property Imperial Metric
Density 0.3 lb/in³ 8.3 g/cm³
Mechanical
Property Imperial Metric
Rockwell B Hardness 65 65
Tensile strength 55000 psi 380 MPa
Yield strength 32000 psi 205000 MPa
Fracture strain 12% 12%
Machinability 70 70
Elastic modulus 17000 ksi 117 GPa
Poisson's ratio 0.31 0.31
Thermal
Property Imperial Metric
Thermal expansion coefficient (@20-300°C/68-572°F) 11.0 µin/in°F 19 µm/m°C
Thermal conductivity (@20.0°C/68°F) 55.0 BTU in/hr ft² °F 95 W/mK