ASTM A387 Grade 11 Class 2 steel

ASTM A387 Grade 11 Class 2 plate is a chromium molybdenum alloy steel plate intended primarily for welded boiler and pressure vessels designed of elevated temperature service. The Cr content 1.25 % and the Mo content 0.50 %.

The Chemical is max composition of product analysis:

Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

ASTM A387 Grade 11 Class 2 mechanical properties at ambient temperature:

Each grade except grade 21L, Grade 22L, Grade 91 and Grade 911 is available in two classes of tensile strength levels. Grade 91 and Grade 911 are available only as Class 2.