15. CuSn6Pb16-C / CuSn6Pb16-B

CuSn6Pb16-C / CuSn6Pb16-B

Common name Material description
World specifications
High-leaded tin bronzeCuSn6Pb16-C / CuSn6Pb16-B--C93900/ SAE67
(ASTM B 505)

The equivalence between the standards is not absolute and some variations in composition can exist.

Chemical Composition in %, (ASTM B 505-18, Continuous castings)


Ni value includes Co
Cu + Sum of Named Elements 98.9% min.

Mechanical Properties (ASTM B 505-18, Continuous castings)

RmTensile strength min.172 N/mm2
Rp0.2Proof Strength min.110 N/mm2
AElongation min.5 %
HBBrinell hardness min.-


Most commonly used bearing alloy, found in bearings operating at moderate loads and moderate-ta-high speeds, as in electric motors and appliances.

  • material for plain bearings in mechanical engineering with medium loads;
  • very good emergency running;
  • high wear resistance;


  • bearings;
  • pump bodies,
  • pump impellers for mine water