ASTM A302GR.C|A302 Grade C pressure vessel

Gangsteel ASTM A302Gr.C steel plate and A302 Grade C pressure vessel steel plate. ASTM A302GRC is manganese-molybdenum- alloy steel plate.

Keywords: ASTM A302GR.C, A302 Grade C, A302 Gr.C steel plate, ASTM A302GrC steel plate

Adopt standard: A 302/ A 302M-03

A302 Grade C steel plate

A302 Grade C steel plates shall be killed and conform to the fine grain size requirement of A 20/A 20M.

A302 Grade C is Mn- Mo-Ni alloy steel grade, the same with A302 Grade D. A302 Grade C min yield strength is 345Mpa. When A302 Grade C in thickness 100mm or over in thickness, the cooling rate maybe accelerated by air blasting or liquid quenching to obtain mechanical properties comparable to those developed by normalizing plates in the lesser thickness.

A302 Grade C steel Chemical

, max % Manganese, max % Silicon, max % Sulfur max %
25mm or under
25mm – 50mm
over 50mm
Heat Product Analysis 1.15-1.50 1.07-1.62 Heat Analysis Product Analysis 0.15-0.40 0.13-0.45   All thick   0.035
    Molybdenum max % Nickel  max % Phosphorus %
    Heat Analysis Product Analysis 0.45-0.60 0.41-0.64 Heat Analysis Product Analysis 0.40-0.70 0.37-073 All thick 0.035

A302 Grade C steel Tensile Requirements

Mechanical Property of A302 Grade C steel plate A302 Grade C
Tensile strength, kis [MPa] Yield strength, min, kis [MPa]
in 8 in. [200 mm], min, %
Elongation in 2 in. [50 mm], min, %
80-100 [550-690]
50 [345] 17 20

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A302 grade C,A302Gr.C,A302 Gr C,A302-grade-C,A302 grade C steel plate.

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