AMS: AMS 4634
Alloy Description: Aluminum Bronze/Aluminum Silicon Bronze
UK: CuAl7Si2
EU: CuAl7Si, CW302G
This Aluminum-Silicon-Bronze Alloy is a low- to medium-strength wrought-hardened product with good wear and galling resistance.
Applications of this aluminum silicon bronze alloy include rotary-craft swash plate bushings, valve stems and bodies, gears, marine hardware, nuts, fasteners, pole line hardware, and valve bodies. C64200 Aluminum Bronze is known as one of the best valve stem alloys.
Rod & Wire
Aluminium Silicon Bronze, DSTAN 02-834 / C64200, possesses similar
mechanical attributes to other Aluminium Bronzes. However, the addition
of 2% silicon enhances strength, corrosion resistance and impact strength
whilst also improving the machinability. This combination of properties
helps to provide designers with more options during the material selection
process. Silicon Aluminum Bronze combines the self lubricity of the
silicon with the higher mechanical properties of Aluminum Bronze and is
sometimes used in place of C63000 where specifications permit. C64200
is free-machining and has good anti-galling and anti-seizing properties.
Applications include rotary-craft swash plate bushings, valve stem, gears,
marine hardware, nuts, pole line hardware, and valve bodies.