C64200, C642 Silicon Aluminum Bronze (AMS 4634)

C64200 Silicon Aluminum Bronze is an engineering alloy at least as resistant to corrosion as copper itself, but much stronger. CDA 642 bronze is manufactured mostly in the form of round, hexagonal, and octagonal rods for hot forming and free machining. C642 is considered to be of the best valve stem alloys. Other applications include gears, marine hardware, nuts, pole line hardware, and valve bodies and components.

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EU Designation: CuAl7Si2, CW302G

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ASTM B150, ASTM B249, QQ-C-465, AMS 4634, SAE J461, SAE J463

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Typical Uses for C64200 Silicon Aluminum Bronze:

AUTOMOTIVE: Valve Guides, Automobile Engine

ELECTRICAL: Pole Line Hardware

FASTENERS: Bolts, Nuts

INDUSTRIAL: Valve Components, Valve Bodies, Gears, Valve Stems, Cams

MARINE: Hardware

Sizes Available From Aviva Metals 

SOLID BAR . . . . . . . . . . 3/16" - 8" diameter

HEX BAR . . . . . . . . . . . . 5/8" - 2 1/2" across the flats