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ASTM A302 Grade B steel plate ,Boiler steel plate A302 Grade B
ASTM A302 is a kind of Mn-Mo and Mn-Mo-Ni alloy steel plates material used to fabric high temperature pressure vessels.A302 Grade B steel plate shall be normally supplied in the as-rolled condition. Plates may be ordered normalized or stress relieved, or both.This kind of steel always used in Pressure Vessel,Boiler,Storage Tanks and Heat Exchanger in Oil,Gas Project.
Steel Grade:A302 Grade B Steel Standard: ASTM A302/A302M
Thickness:6mm-450mm Width:1200mm-4200mm
Length:3000mm-18000mm Surface Treatment:Shot blasting and painting or coated
Chemical Composition and Mechanical Property:
|
Grade |
Chemical Composition(%) |
||||
|
C |
Mn≥ |
Si |
P |
S |
|
|
A302 Grade B
(A302GRB)
|
0.20 |
1.07-1.62 |
1.07-1.62 |
0.035 |
0.035 |
|
Grade |
Mechanical Property |
|
|||
|
Tensile Strength(MPa) |
Yield Strength(MPa) |
% Elongation in 2 in.(50mm) min |
Impacting Test Temperature(°C) |
|
|
|
A302 Grade B
(A302GRB)
|
550-690 |
345 |
18 |
-20,40,-60 |
|
ASTM A302 Grade B Heat Treatment:
(1)Plates 2 in. [50 mm] and under in thickness are normally supplied in the as-rolled condition. Plates may be ordered normalized or stress relieved, or both.
(2)Plates over 2 in. [50 mm] in thickness shall be normalized.
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