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ASME SA514 Grade Q/ SA514 Gr.Q high strength weldable steel plate steel plate

ASME SA514 Grade Q/ SA514 Gr.Q high strength weldable steel plate is quenching and tempering steel under the ASME SA514 / SA514M standard. The main purpose is to use under high tensile, high yield sites. The engineering car lifting gear and the rack used in the offshore platform generally use ASME SA514 Grade Q/ SA514 Gr.Q high strength weldable steel plate. ASME SA514 Grade Q high strength weldable steel plate chemical composition:

Grade C Mn P S Si Ni Cr Mo V Ti Zr Cu B
SA514 Gr.Q 0.14-0.21 0.95-1.30 ≤0.035 ≤0.04 0.15-0.35 1.20-1.50 1.00-1.50 0.40-0.60 0.03-0.08 ~ ~ ~ ~

ASME SA514 Gr.Q high strength weldable steel plate mechnical properties:

Grade Thickness Yield Strength Tensile Strength Elongation in 50mm Hardnees Brinell
SA514 Gr.Q less 3/4 inch 690 760-895 18 235
over 3/4 to 2 1/2 690 760-895 18 ~
over 2 1/2 to 6 inch 620 690-895 16 ~

Based on various thickness, the hardness of ASME SA514 Grade Q/ SA514 Gr.Q high strength weldable steel plate is between 235-290, yield greater than 630MPa, tensile strength at 700MPa above. The processing of ASME SA514 Grade Q/ SA514 Gr.Q high strength weldable steel plate is more difficult than common steel plates. So the ASME SA514 Grade Q/ SA514 Gr.Q high strength weldable steel plate supplier is very important to consider to guarantee the plate quality. 

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