35CrMo structural alloy has high static strength, impact toughness and higher fatigue limit, and has higher hardenability than 40Cr. At high temperatures, 35CrMo alloy has high creep strength and endurance strength, and its long-term working temperature can reach 500 ℃; Medium plasticity during cold deformation, poor weldability. Low temperature to -110 degrees Celsius, and has high static strength, impact toughness and high fatigue strength, good hardenability, no tendency to overheat, and small quenching deformation. The plasticity of 35CrMo alloy is fair during cold deformation, and the machinability is medium, but it has the first type of temper brittleness. The weldability is not good. It needs to be preheated to 150~400 degrees Celsius before welding. Post-weld heat treatment is used to eliminate stress. It is generally used after quenching and tempering. It can also be used after high and medium frequency surface quenching or quenching and low and medium temperature tempering.
Application range35CrMo structural alloy is used to manufacture important parts in various machines that bear impact, bending and torsion, and high loads, such as steel rolling mill herringbone gears, crankshafts, hammer rods, connecting rods, fasteners, steam turbine engine main shafts, axles, Engine transmission parts, large motor shafts, perforators in petroleum machinery.
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