Q690E steel is a kind of low alloy high strength steel.Q690E steel is named because of its yield strength value, Q is the abbreviation of yield strength, that is, the yield strength of Q690E steel is 690 MPa, E indicates that the impact temperature of Q690E steel is - 40℃.
Chemical composition of Q690E steel material:
C ≤ 0.18, Si ≤ 0.60, Mn ≤ 2.0, P ≤ 0.030, S ≤ 0.025, Nb ≤ 0.11, V ≤ 0.12, Ti ≤ 0.20, Cr ≤ 1.00, Ni ≤ 0.80, Cu ≤ 0.80, N ≤ 0.015, Mo ≤ 0.30, B ≤ 0.004, Al ≤ 0.015.
Q690E steel material mechanical properties: yield strength ≥ 690 MPa, tensile strength 730-940 MPa, elongation at break ≥ 14%, impact energy 31J.
Q690E steel material applications:
Q690E steel material has high strength, good plasticity and toughness, good weldability, good hot and cold performance.Q690E steel material is mainly used to manufacture a variety of large-scale engineering structural components and construction machinery.
Q690E steel material high strength, good toughness, in order to ensure the strength, stiffness and reliability of the premise, can reduce the weight of the components to meet the engineering components and equipment large-scale, lightweight requirements.
