Alloy Grade UNS: C84400 – High aqueous

  • Overview

    C84400 is a very popular semi-leaded red brass alloy. This alloy features high aqueous and atmospheric corrosion resistance, moderate strength, and conductivity. This material is also a cost-effective solution for many projects. The 80% copper also helps boost thermal conductivity.

  • Typical Uses

    Bearings, bushings, electric terminal ends, impellers, pipe fittings, pump and valve components.

  • MetalTek Grade

    MTEK 844

Similar Specifications

Cast UNS: C84400

Cast Grade: C84400

Cast ASTM: B271, B505, B584, B763

Military/AMS: QQ-C-390B

Typical Chemical Composition (% by wt.)

Aluminum: 0.005

Carbon: n/a

Chromium: n/a

Manganese: n/a

Iron: 0.4

Copper: 80

Nickel: 1

Lead: 7

Tin: 3

Silicon: 0.005

Zinc: 8.5

Other: P 0.02; S 0.08; Sb 0.25

Minimum Mechanical Properties

Tensile, ksi


Tensile, MPa


Yield, ksi


Yield, MPa