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What are characteristics of alloy steel?

What are characteristics of alloy steel?

Alloy steel is made by combining carbon steel with one or more alloying elements (such as manganese, silicon, nickel, titanium, copper, chromium and aluminum), which will produce special properties that ordinary carbon steel does not have, for example, enhancing hardenability and corrosion resistance, and maintaining hardness and strength.

Adding a small amount of alloying elements can make conventional carbon steel produce certain specific properties. Aluminum can remove oxygen, sulfur and phosphorus from steel. Bismuth improves workability. Chromium can improve wear resistance, hardness and toughness. Cobalt increases stability and promotes the formation of free graphite. Copper improves hardenability and corrosion resistance. Manganese can improve hardenability, ductility, wear resistance and high temperature strength. Molybdenum reduces the carbon concentration and increases room temperature strength. Nickel improves strength, corrosion resistance and oxidation resistance. Silicon can increase strength and magnetism. Titanium can increase hardness and strength. Tungsten improves hardness and strength. Vanadium improves toughness, strength, corrosion resistance and impact resistance. Chromium vanadium greatly improves the tensile strength. It is difficult but easy to bend and cut.

Alloy steel has become the main force of the industry due to its low economic cost, wide application field, easy processing and good mechanical properties.

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