HSLA structural EN steel grade S690QL material yield strength

Pickling steel sheet grades: SPHC, SPHD, SPCE, SS400, St37-2, St52-3, JSH270C, JSH440W, S315MC, S355MC, S420MC, S460MC, S500MC, S550MC, S600MC, S700MC, SAPH310, SAPH370, SAPH400, SAPH440, EN steel grade S690QL material, SAE1008, SAE1022, QStE340TM automotive structural steel, QStE380TM, QStE420TM, QStE460TM, QStE500TM, QStE550TM, B330CL, B380CL, B420CL, B510LS20C, S35C, S45C, DP600, ZQS500L.

When the EN steel grade S690QL material, wear-resistant steel plate is produced, relevant heat treatment must be carried out, and then forging and processing are carried out after preheating. When the wear-resistant steel plate is heat treated, the temperature should be properly controlled. The heating temperature of the wear-resistant steel plate is 810-830 degrees, and the holding time depends on the furnace loading method. Tempering temperature: 320 degrees, sufficient time is necessary, oil cooling after tempering to reduce temper brittleness.

Cold rolled EN steel grade S690QL material steel sheet can be produced by two high mill, four high reversing mill, multi high reversing mill and tandem cold mill. Although there are still only two work rolls in four high and multi high rolling mills, each work roll is supported by one or more large diameter backup rolls, which can prevent deflection of work roll. As a result, wide and thinner EN steel grade S690QL material steel plates can be produced. For example, 20 high mill can produce as thin as 0. 001 mm sheet, but the two high mill can only produce as thin as 0. 35mm sheet

After the order is finished, our after-sales service center will send an email to make a feedback about our steel products' quality. We have phone service every three months to remind our customers of the possible problems and collect advices or suggestions in quality and service. Upon the collection of advices or suggestions, our after-sales service will quickly make technical solutions to wipe out the customer problem.