(Aluminum Bronze, 11%)

Used in a wide variety of fasteners and industrial applications.

To download a detailed spec sheet on this alloy from the Copper Development Association, click the button below.

Chemical Composition

Copper (Cu)


Tin (Sn)

0.20% Max

Iron (Fe)

2.0 – 4.5%

Aluminum (Al)

10.0 – 11.5%

Silicon (Si)

0.25% Max

Manganese (Mn)

0.30% Max

Cu + Sum of Named Elements


C62400 alloy, commonly referred to as aluminum bronze, 11% is frequently used in making automotive valve guides, bolts, nuts, cams, gears, valve components, and marine hardware.