Semi-Red Brass Casting Alloy (UNS C84020) - Mechanical Properties

Nov 30 2012

Semi-red brass UNS C84020 has a copper content of not less than 82%.

The following table shows the mechanical properties of UNS C84020 casting alloy as a function of heat treatment.

Temper Tensile Str. Yield Str. Elong.
M01 269MPa (39ksi) 110MPa (16ksi) 33%
- 125MPa (18ksi) 43%

The chemical composition of UNS C84020 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 82-89
Zinc, Zn 5-14
Tin, Sn 2-4
Nickel, Ni 0.5-2
Iron, Fe 0.4
Manganese, Mn 0.2
Boron, B 0.2
Zirconium, Zr 0.2
Sulfur, S 0.1-0.65
Carbon, C 0.1
Lead, Pb 0.09
Phosphorous, P 0.05
Antimony, Sb 0.02
Silicon, Si 0.005
Aluminum, Al 0.005

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