hardox 400 sheet tensile strength ultrasonic flaw detection

Global HARDOX 400 sheet tensile strength crude steel production in March this year increased by 2.6 percent month on month and fell by six percent year on year to 147.1 million metric tons. accordina to the World Steel Association (worldsteel).In the first quarter of this year, global HARDOX 400 sheet tensile strength crude steel production decreased to 443.03 million mt, down 1.4 percent year on year。

When the HARDOX 400 sheet tensile strength, 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.

HARDOX 400 sheet tensile strength, P355GH plate mechanical properties: P355GH steel plate thickness/mm:> 60-100: tensile strength σb / MPa: 490-630; yield strength σx / MPa:> = 315 Impact absorption energy AKv / J:> = 34. Steel plate thickness / mm:> 100-150: tensile strength σb / MPa: 480-630,y ield strength σx / MPa:> = 295 Impact absorption energy AKv / J:> = 34. Chemical composition % (C:0.10-0.22, Si:<=03.60, Mn:1.00-1.70, Nb:<=0.010, Ti:<=0.03 S:<=0.030, P:<=0.025, Cr:<=0.30, Ni:<=0.30, Cu:<=0.30, Mo:<=0.10, V <=0.02)

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