(Leaded Commercial Bronze)

Used in a wide variety of builders hardware, electrical, fasteners and industrial applications.

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

Bronze Doorknob

Chemical Composition

Copper (Cu)

87.5 – 90.5%

Lead (Pb)

1.3 – 2.5%

Iron (Fe)

0.10% Max

Nickel (Ni)

0.7% Max

Zinc (Zn)

C31400 alloy is sometimes referred to as leaded commercial bronze and is often used in doorknobs, electrical connectors, nuts, screws, pickling crates and racks, screw machine parts. It is rated as excellent for soldering and good for brazing.