Chrome molybdenum alloy steel grades and application

38CrSi alloy steel: It can be used as tractor intake valve, internal combustion engine oil pump gear, cold working impact tool, such as rivet press head, etc.

12CrMo alloy steel: It is used to manufacture main pipe with steam parameters up to 510℃ and superheated pipe with wall temperature up to 540℃.

15CrMo steel: It is used to manufacture superheater tubes and steam pipes with steam parameters up to 530℃.

20CrMo 30CrMo alloy steel: It can be used to manufacture high-pressure pipes working in non corrosive medium and medium containing nitrogen and hydrogen mixture with temperature lower than 250℃.

35CrMo alloy steel: It can be used as important structural parts under high load, such as transmission parts of vehicle and engine, rotor and main shaft of steam turbine generator, transmission shaft under heavy load, piercer for petroleum industry, fastener for boiler with temperature ≤ 480℃, thick wall high pressure conduit for chemical equipment with temperature < 500℃ and working in non corrosive medium. It can replace 40CrNi steel to make large section parts, bolts, nuts, etc.

42CrMo alloy steel: It is used for forgings with higher strength or larger section than 35CrMo steel, such as big gear for locomotive traction, transmission gear for supercharger, cylinder of rear axle engine, drill pipe joint and fishing tool for 1000-2000m oil well, etc. It can replace the quenched and tempered steel with high Ni content.