According to the alloy system, copper is divided into four categories: Red Copper (pure copper) , brass, bronze and white copper. Red Copper includes pure copper, oxygen-free copper, phosphorus deoxy copper, silver copper and so on. Brass is an alloy of copper with zinc as the main additive element. It is divided into common brass and complex brass. Complex brass includes lead brass, aluminum brass, tin brass, iron brass, silicon brass, manganese brass, and nickel brass. Bronze refers to copper alloys in which other elements other than zinc and nickel are the main additions, including tin brass, beryllium bronze, aluminum bronze, silicon brass, magnesium bronze, titanium bronze, chromium bronze, zirconium bronze and cadmium bronze. Cupronickel refers to copper alloys with nickel as the main addition element, including ordinary cupronickel, iron cupronickel, zinc cupronickel, aluminum cupronickel and so on.

Copper

Copper beryllium alloy

銅鈹合金

Copper beryllium alloy

Chromium copper alloy

copper zinc alloys/Brasses

Source: Caitong, Tongxinbao

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