A302 grade C,A302GrC,A302 Gr C,A302Gr.C Steel Plate

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A302 grade C,A302GrC,A302 Gr C,A302Gr.C Steel Plate
 
Unitedsteel Mill produce super thickness and high quality A302 Grade A steel plates standard specification for pressure vessel plates in alloy steel, manganese molybdenum and manganese-molybdenum-nickel.
 
A302 Grade C steel plates shall be killed and conform to the fine grain size requirement of specification 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 normalized 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 Requirements
Carbon, max % Manganese, max % Silicon, max % Sulfur max %
25mm or under
25mm - 50mm
over 50mm
0.20
0.23
0.25
Heat Analysis
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]
Elongation 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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