A302 GR.B Alloy Pressure Vessel Steel Plate

This specification covers manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates intended particularly for welded boilers and other pressure vessels. ASTM A302 is a kind of low alloy steel specification covers 4 different grades(A, B, C, D), Grade C and D contains chemical composition Ni, with the same thickness, yield and tensile strength of Grade C is the same of Grade B, while elongation rate of grade C is higher.This specification covers manganese-molybdenum and manganese-molybdenum-nickel alloy steel plates intended particularly for welded boilers and other pressure vessels. ASTM A302 is a kind of low alloy steel specification covers 4 different grades(A, B, C, D), Grade C and D contains chemical composition Ni, with the same thickness, yield and tensile strength of Grade C is the same of Grade B, while elongation rate of grade C is higher. It is manufactured for Pressure Vessel, Boiler, Storage Tanks and Heat Exchanger in Oil, Gas Project.

Thickness: 6MM to 300MM,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm
 

ASTM A302 Grade B Chemical Composition
Grade	The Element Max (%)
	C	Si	Mn	P	S	Al	N
A302 Grade B	0.20-0.25	0.13–0.45	1.07-1.62	0,035	0,035
	Nb	V	Ti	Cu	Cr	Ni	Mo
							0.41–0.64

 

Grade		ASTM A302 Grade B Mechanical Property
	Thickness	Yield	Tensile	Elongation
A302 Grade B	mm	Min Mpa	Mpa	Min  %
	6-50	345	550-690	18%
	50-200	345	550-690	15%