16Mo3 steel is a kind of non - carbon structural steel with high content of carbide forming element Mo. The steel belongs to pearlite heat resistant steel, has good wear resistance, high strength and good toughness. 16Mo3 steel welding performance is also very good, has a certain strength and toughness. 16Mo3 steel is a structural steel, which is used for manufacturing gear, bearing and other mechanical parts and tools with high carbon chromium structural steel. The steel has high plasticity, good machinability and cold deformation plasticity after hot working. At the same time, it has good oxidation resistance and corrosion resistance.
16Mo3 steel is commonly used in parts that work in low temperature environments, such as impact and cutting tools. Such as automotive parts, rack and pinion, scraper, spiral bevel gear, automatic production line, textile machinery, etc. Therefore, the steel is used to manufacture some parts with low life, high cost and high risk.
(1) 16Mo3 steel still maintains good wear resistance and corrosion resistance at low temperature. The steel can be heat treated to improve its tempering brittleness resistance, such as quenching temperature 700℃~900℃, tempering temperature 260℃~350℃.
(2) 16Mo3 steel has good mechanical and comprehensive mechanical properties, such as creep strength up to about 2000 MPa; Cold bending with high stiffness and toughness.
(3) 16Mo3 steel has excellent machining properties, cutting without heat treatment.
(4) When 16Mo3 steel is used as a corrosion resistance part, it should be heat treated to improve its corrosion resistance, such as recrystallization annealing, hot working treatment or tempering treatment in the range of 20~800℃. However, due to the high carbon content of the steel, the recrystallization temperature should not exceed 900℃.
Compared with 20 Cr, 16Mo3 steel has better wear resistance and tempering brittleness, and its hardening layer is deeper (about 8 mm). But its temper brittleness is greater than 20 Cr steel.
16Mo3 steel belongs to carbide forming element for thermal strength structure, its function is to improve hardenability and wear resistance. After aging treatment, the steel can improve the impact toughness and hardness, and also has certain fatigue resistance. 16Mo3 steel can be used in the range of 800~900℃. Contact with ferroalloy or direct contact with molten steel should be avoided at high temperature to prevent decarbonization and reduce strength.
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