Many types of non-ferrous metals, metals with a density greater than 4.5 g/cm are called heavy metals such as copper, zinc, nickel, etc. Metals with a density less than 4.5 g/cm are called light metals such as aluminum, magnesium, and titanium.

TheCharacteristics and uses of copper and copper alloys - With good electrical conductivity, thermal conductivity and excellent welding performance, pure copper is mainly used as a conductor, to manufacture anti-magnetic interference instruments and instrument parts, such as compasses, aviation instruments and other parts. Copper alloys include brass, bronze, and white copper. The most widely used brass in electromechanical equipment is heat sinks and heat exchangers.

Characteristics and uses of zinc and zinc alloys - Zinc has a certain strength and good corrosion resistance, characterized by high density, good castability, mainly used as die casting equipment, automotive parts and other shells.

Features and uses of nickel and nickel alloys are characterized by high strength, good plasticity, poor thermal conductivity, and high electrical resistance. Nickel alloys are resistant to high temperatures and acid and alkali corrosion. It is mainly used for valves, pumps, and marine fasteners in the chemical, petroleum, and shipping industries.

Characteristics and applications of aluminum and aluminum alloys - Good thermal and electrical conductivity, second only to gold, silver and copper, good plasticity, but low strength, hardness, poor wear resistance, mainly used in the manufacture of nitric acid, sulfur-containing petroleum industry Such as reactors, heat exchangers, etc., aluminum alloy is mainly used for parts that require bending and stamping, such as pipes, tanks and so on.