30CrMo alloy structural steel coil , chrome molybdenum alloy steel, this steel is a kind of alloy steel, 30 refers to the carbon content.It is made with 10.9S 8.8S high strength bolts, but must be tested before use to confirm its Ingredients content, can be assured that the use of Chinese brands 30CrMO alloy structural steel coil is equivalent to Japan SCM430 alloy structural steel coil.
30CrMo alloy structural steel coil has high strength ,toughness,and high harden ability,.critical quenching diameter in the oil is 15 to 70mm, steel thermal strength is also good,.below 500 degrees Celsius with sufficient high temperature strength, but 550 degrees Celsius The strength of the alloy decreased at the lower limit; but when close to the upper limit ,the welding is medium, and before the welding, 30CrMo alloy structural steel coil need to preheat to 175 degrees Celsius; steel machinability is good, cold deformation when the middle of the medium; heat treatment 300 to 350 degrees Celsius in the range of the first type of temper brittleness; have a tendency to form a white point.
BBNsteel also supply 30CrMo alloy structural steel coil , 4130 and so on. We could supply information for 30CrMo alloy structural steel coil you want.looking for award to your enquiry sincerely.
