C86300 Manganese Bronze is a non-lead “GREEN” Alloy
Manganese Bronze CDA 863
Manganese bronze is a very hard and strong bronze. Good applications include heavy earth moving
equipment, roll neck bearings, and machine tool bearings.
Solid and cored bars are stocked in 13" increments and 144" lengths, and are available in other
lengths and non-standard sizes. Consider bars for use when you need special bearings, bearings for
prototypes, or for emergency repairs.
Typical Properties: (Not to be used for specification purposes.)
Copper: 60.00 – 66.00%
Zinc: 22.00 – 28.00%
Iron: 2.00 – 4.00%
Aluminum: 5.00 – 7.50%
Manganese: 2.50 – 5.00%
Physical Properties: Continuous Cast
Tensile Strength, PSI: 110,000 min.
Yield Strength, PSI: 62,000 min.
Elongation: 14% min.
Brinell Hardness (3000 kg load): 225 typical
Machinability Rating: 80
Minimum Operating Temperature: -450°F
Maximum Operating Temperature: 400°F
C86300 Aluminum bronze is used for low speed, and very high load bearing applications. C86300 requires
hardened steel shafts and constant lubrication of grease, graphite or molybdenum-disulfide.
Bunting also produces other Manganese Bronzes including C86200, C86400, C86500 and C86700.