ASTM A387 Grade 12 steel plate is chrome molybdenum steel for use in weldable pressure vessels and industrial boilers in elevated temperature service. ASTM A387 Grade 12 steel plate benefits from added chromium which provides excellent corrosion and oxidation resistance, and makes A387 Grade 12 steel plate ideal for sour service applications in the oil and gas industry.
ASTM A387 Grade 12 steel plate Chemical Composition (heat analysis):
Grade | C | Si | Mn | P | S | Cr | Mo |
A387 Grade 12 | 0.05-0.17 | 0.025 | 0.5-0.8 | 0.025 | 0.025 | 0.8-1.50 | 0.45-0.60 |
ASTM A387 Grade 12 steel plate Mechanical Property:
Grade | Yield strength Min Mpa | Tensile strength Mpa | Elongation Min %(50mm) |
A387 Grade 12 Class 1 | 230 | 380-550 | 22 |
A387 Grade 12 Class 2 | 275 | 450-585 | 22 |
ASTM A387 Grade 12 steel plate gets high heat resistance for its Chromium-Molybdenum content. ASTM A387 Grade 12 steel plate has been widely used in the areas such as petrol chemical industry, steam power equipment, and high temperature services.