SA302 Grade B steel plates standard specification for pressure vessel plates in alloy steel, manganese molybdenum and manganese-molybdenum-nickel.. SA302 Grade B steel plate shall be normally supplied in the as-rolled condition. Plates may be ordered normalized or stress relieved, or both. If A 302 Grade B above 50mm in thickness shall be normalized.
ASME,SA542 C Pressure vessel steel,SA662 Grade A,SA588 SA203 Grade D steel grade is a nickel alloy steel plate in welded pressure vessels. For this SA203 Grade D is max thickness in 100mm and the element of nickel is 3.25% to be used in manufacturing pressure vessel and boilers. SA662 Grade A. SA662 Grade A steel is American ASME standard pressure vessel in C, Mn steel, mainly used in the