What metals are commonly used in cars?

Metal materials are usually divided into ferrous and non-ferrous metals

(1) Ferrous metals Ferrous metals refer to steel and iron, its density is 7.8

Carbon steel and cast iron: for iron carbon alloy, if the carbon content is less than 2.11%, and contains a small amount of silicon (Si) manganese (Mn) phosphorus (P) sulfur (S) and other impurities of iron carbon alloy called carbon steel, referred to as carbon steel steel classification methods are many, commonly used according to the use of steel classification, can be divided into structural steel tool steel and special performance steel steel is widely used in automobiles, If the carbon content is greater than 2.11%, such as bus body skeleton gear spring bearing, known as cast iron cast iron has good casting wear resistance cutting and processing advantages, and the strength of low-cost cast iron is generally lower than steel, especially poor plasticity and toughness but with the emergence of nodular cast iron, Greatly improved the strength and toughness of cast iron such as the automobile cylinder body cylinder liner piston ring rear axle housing are made from cast iron

(2) Non-ferrous metals Non-ferrous metals refer to metals other than iron and steel

Aluminium and aluminium alloy: pure aluminium is silvery white, it has good electrical and thermal conductivity, density is 2.7, the surface will generate AL2O3 films in the air, has the very good corrosion resistance, and has good plasticity, but strength is very low strength of pure aluminium, but to join in the pure aluminium SiCuMgZnMn and other elements to form the characteristics of the aluminum alloy aluminum alloy melting point is low, Aluminum alloy can be used to manufacture automobile cylinder body cylinder head tire rims and other parts, especially widely used to manufacture engine piston, has the advantages of high strength, small mass and small inertia

Copper and copper alloy: pure copper is purple, plastic has good electrical conductivity thermal conductivity and corrosion resistance, but low intensity, density of 8.9 is widely used in the manufacture of copper and other copper alloy wire and cable. Commonly used copper alloy have brass and bronze on the industrial brass is an alloy of copper and zinc in copper after adding a small amount of zinc, mechanical performance change is very big, Plastic and strength increase brass has good performance, can be made into a variety of profiles in the pressure processing method of radiator materials in car engines, thermal conductivity and welding performance and corrosion resistance are high, commonly used brass manufacturing

The grade of brass is denoted by the letter H and its copper content. For example, H68 represents a brass with a copper content of about 68% and a zinc content of about 32%

Bronze is copper alloy composed of elements other than copper and zinc and nickel bronze is divided into tin bronze and wuxi bronze two kinds of tin bronze is made of copper and tin alloy, compared with brass, it has higher wear resistance and wear reduction, and good casting performance and cutting performance, commonly used casting method to manufacture wear-resistant parts, such as bearings worm gear

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