Use of Q690E steel plate

Q690E steel plate is a kind of high-strength welded structural steel. Q represents the yield strength, 690 represents the yield strength value, and E represents the grade of steel plate; The quality grades are A, B, C, D and E. The impact of Grade D steel plate is －40°C. Q690E steel plate can be called low temperature resistant high strength steel with yield strength of 690Mpa. Q690E steel plate has higher yield strength and tensile strength, so it is seldom used.

Chemical composition of Q690E steel plate:
C: ≤ 0.18, Si: ≤ 0.60, Mn: ≤ 2.0, P: ≤ 0.030, S: ≤ 0.025, Ni: ≤ 0.80, Cr: ≤ 1.00, Mo: ≤ 0.30, Nb: ≤ 0.11, Ti: ≤ 0.020

Use of Q690E steel plate: Q690E is a - 40°C impact high-strength quenched and tempered steel plate corresponding to the European standard S690QL, which manufactures various kinds of engineering machinery resistant to low temperature impact, such as drilling machines, shovels, electric wheel dumpers, mining trucks, excavators, loaders, bulldozers, cranes, coal mine hydraulic supports and other mechanical equipment and other structural parts used in mining and various engineering construction.