8. CuSn11P-C/ CuSn11P-B, (CC481K / CB481K)

CuSn11P-C/ CuSn11P-B, (CC481K / CB481K)

Common name Material description
World specifications
EuropeanBritishAmerican
Tin bronzeCuSn11P-C/ CuSn11P-BCC481K / CB481K
(EN 1982)
PB1
(BS 1400)
C90700
(ASTM B 505)

Other name: Def Stan 02 838 Part 1, NES 838 Part 1, SAE 65c, NES 838, C90710 (AS 1565:1985),  904D (AS 1565:1974)
The equivalence between the standards is not absolute and some variations in composition can exist.

Chemical Composition in %, (EN 1982:2017, Castings)

 CuSnPbZnNiAlFeMnPSSiSbAsCrBiCdSe
Min87.010.0------0.5--------
Max89.511.50.250.050.100.010.100.051.00.050.010.05-----

Chemical Composition in %, (EN 1982:2017, Ingots)

 CuSnPbZnNiAlFeMnPSSiSbAsCrBiCdSe
Min87.010.2------0.6--------
Max89.311.50.250.050.100.010.100.051.00.050.010.05-----

Mechanical Properties (EN 1982:2017, Continuous castings)

RmTensile strength min.350 N/mm2
Rp0.2Proof Strength min.170 N/mm2
AElongation min.5 %
HBBrinell hardness min.85 HBW

Properties:

  • material combines high mechanical strength with good ductility, corrosion resistance and wear resistance

Application:

  • industrial Restaurant Equipment,
  • bearings for heavy loads and relatively low speeds,
  • bearings,
  • gear boxes,
  • speed reducers,
  • valve bodies,
  • worm gears