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GBT 16270 Q690C quenched and tempered steel plates steel plate

GBT 16270 Q690C quenched and tempered steel plates are high strength welded structural steel. Q represents yield strength, 690 represents yield strength value C indicates the impact temperature of Q690 steel. The impact of grade C steel plate is 0 °C.

GBT 16270 Q690C quenched and tempered steel plates chemical composition:

Steel grade C% max Si% max Mn% max P% max S% max Cu% max Cr% max Ni% max Mo % max B % max V % max Nb% max Ti % max
Q690C 0.2 0.80 1.8 0.025 0.015 0.5 1.5 2 0.70 0.005 0.12 0.06 0.05

GBT 16270 Q690C quenched and tempered steel plates mechanical property:

Steel grade Yield strength Mpa min Tensile strength Mpa min elongation %  Energy and temperature
Min 0 -20 -40 -60
  t≤50 50-100 100-150 t≤50 50-100 100-150   J J J J
Q690C 690 650 630 770-940 760-930 710-900 14 47 47 34 34

GBT 16270 Q690C quenched and tempered steel plates have high yield strength and tensile strength. Q690C steel plates are widely used in coal mine machinery and construction machinery. Such as hydraulic support, port crane, flatbed transporter and so on.

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