产品详细信息
ASTM A302 Grade D steel covers manganese-molybdenum and manganese- molybdenum- nickel alloy steel plates intended particularly for welded boiler and other pressure vessels.
ASTM A302 Grade D steel heat treatment:
ASTM A302 Grade D steel plate 2in.[50mm] and under in thickness are normally supplied in the as-rolled condition.plates may be ordered normalized or stress relieved,or both.
ASTM A302 Grade D steel plates over 2in.[50mm] in thickness shall be normalized.
When normalizing ASTM A302 Grade D steel plates 4in.[100mm] or over in thickness,the cooling rate may be accelerated by air blasting or liquid quenching to obtain mechanical properties comparable to those developed by normalizing plates in the lesser thicknesses.
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