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CuSn10Zn2 (RG10, Promet 310)

Technical properties

130
N/mm²
0.2% proof strength
260
N/mm²
Tensile strength
15
%
Elongation A5
75
HB
Hardness

Nominal composition

Cu
Copper
88%
Sn
Tin
10%
Zn
Zinc
2%

The hardest gunmetal for demanding sliding and bearing applications

CuSn10Zn2 is also known as RG10 and Promet 310. The alloy is the highest-tin and hardest of the gunmetals, withstanding seawater and offering good sliding properties. It is suited to bearings where peak loads reach 50 N/mm², ship propeller-shaft casings, sliding panels and guides, worm wheels, and clamping nuts.

Standard equivalents

DIN 1705 · 2.1086

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