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A302 GRB steel plate comparasion with A302 GRA boiler plate
Source:Steel Industry Date:2021/03/11
A302 GRB steel plate and A302 GRA steel plate are both supplying comply to american steel specification ASTM A302/A302M which including Manganese-Molybdenum Mn-Mo alloy and Manganese-Molybdenum-Nickel Mn-Mo-Ni alloy steel grades.A302 Gr.B steel plate and A302 Gr.A steel plate only contains alloy Mo,no requirement for alloy Ni.A302 Gr.D steel plate and A302 Gr.C steel plate contains Mo and Ni in chemical composition.
A302 GRB steel plate comparasion with A302 GRA boiler plate,chemical composition is very similar,only Mn% is different.A302 GrB steel plate requires a higher Mn% contains than A302 GrA boiler plate.In mechanical property,ASTM A302 GrB also need a higher value on yield strength and tensile strength.
China steel stock hundreds tons Mo alloy boiler plate A302 grades steel plates with thickness range 5-80mm.
A302 GrB vs A302 GrA Chemical composition: Heat Analysis Max% Standard Grade C Mn P S Si Cu Ni Cr Mo ASTM A302/A302M A302 GrB 0.20 1.15-1.50 0.025 0.025 0.15-0.40 - - - 0.45-0.6 ASTM A302/A302M A302 GrA 0.20 0.95-1.30 0.025 0.025 0.15-0.40 - - - 0.45-0.6 Mechanical Properties: Yield strength Tensile strength Mpa Min. Mpa ASTM A302/A302M A302 GrB 345 550-690 ASTM A302/A302M A302 GrA 310 515-655