GB/T1591 Q420E high strength low alloy structural steel plate

GB/T1591 Q420E steel plate is a kind of high strength low alloy structural steel .The grades of steel are composed of three parts: the alphabet (Q), the yield point value and the quality grade symbol (A, B, C, D, E) representing the yield point.The yield point value of GB/T1591 Q420E steel plate is 420,quality grade symbol is E.
When the thickness of less than or equal to 12mm GB / T1591 Q420E steel plate to do the impact test,should be used 10mm*10mm*55mm sample,When the thickness of 6mm-12mm GB / T1591 Q420E steel plate to do the impact test,should be adopt to 5mm*10mm*55mm small size sample.The impact sample can be retain a rolling surface.The longitudinal axis of the impact sample shall be parallel to the rolling direction
GB/T1591 Q420E steel plate Chemical composition(%)
C:≤0.20 Mn:1.00-1.60 Si:≤0.55 P:≤0.025 S:≤0.025 V:≤0.02-0.20 Nb:0.015-0.060 Ti:0.02-0.20 Al:≥0.015 Cr:≤0.40 Ni:≤0.70
GB/T1591 Q420E steel plate Mechanical properties
Yield strength(Mpa):360-420 Tensile strength(%):520-680 Elongation(%):19
As a GB/T1591 Q420E steel plate producer in china.Our company's purpose is offering high quality GB/T1591 Q420E steel plate with competitive prices.If you have any questions about GB/T1591 Q420E steel plate.Welcome to contact us.

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