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-Shileded Arc
  • Gas-Shileded Arc
  • Oxyacetylene
  • Seam
  • Soldering
  • Spot

C67300 Manganese Bronze Alloy Properties

Physical
Property
Imperial
Metric
Density
0.3 lb/in
8.3 g/cm3
 
Mechanical
Property
Imperial
Metric
Rockwell B Hardness
65
65
Tensile strength
55000 psi
380 MPa
Yield strength
30,000 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