Copper-Chromium (CuCr) Master Alloy

Topics Covered

Chemical Composition


A master alloy is a combination of base metals such as copper, aluminum, or nickel, and one or two other elements of relatively higher percentage. It is a semi-finished product that is primarily manufactured for use as a raw material. Master alloys can be produced in many shapes.

Master alloys are mostly used in the metal industry. The two main applications are composition adjustment and structure control. These alloys are favored over pure metals as they are more economical, and save production time and energy as they melt faster in lower temperatures.

Copper-chromium master alloy has the main characteristics of copper, which is a soft, conductive, non-ferrous metal. Copper is also resistant to corrosion and ductile. The following datasheet will provide more details about the copper-chromium master alloy.

Chemical Composition

The following table shows the chemical composition of copper-chromium master alloy.

Element Content (%)
Copper, Cu 94-96
Chromium, Cr 4-6
Iron, Fe 0.05 max
Manganese, Mn 0.03 max
Aluminum, Al 0.02 max
Silicon, Si 0.02 max
Lead, Pb 0.02 max
Antimony, Sb 0.01 max
Arsenic, As 0.01 max
Phosphorus, P 0.007 max
Sulfur, S 0.005 max
Tellurium, Te 0.005 max
Selenium, Se 0.005 max
Bismuth, Bi 0.005 max
Others 0.13 max


Copper-chromium master alloy can be applied for precipitation hardening of alloyed copper.

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