ASTM A387 Grade 22 Class 2 steel plate is characterised by good weldability, good properties at high and low temperatures. ASTM A387 Grade 22 Class 2 steel plate is used for manufacturing boilers, pressure vessels and pipes for the transportation of hot liquids.
ASTM A387 Grade 22 Class 2 steel plate Chemical Composition: Max (%)
| Grade | C | Si | Mn | P | S | Cr | Mo |
| A387 Grade 22 Class 2 | 0.04-0.15 | 0.50 | 0.30-0.60 | 0.035 | 0.035 | 1.88-2.62 | 0.85-1.15 |
Carbon Equivalent: Ceq = [C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15]%
ASTM A387 Grade 22 Class 2 steel plate Mechanical Property:
| Grade | Thickness | Yield | Tensile | Elongation |
| A387 Grade 22 Class 2 | mm | Min Mpa | Mpa | Min % |
| t≦50 | 310 | 515-690 | 18 | |
| 50<t≦200 | - | - | - |
ASTM A387 Grade 22 Class 2 steel plate is always supplied in the normalised and tempered condition. The excellent corrosion and oxidation resistance enable ASTM A387 Grade 22 Class 2 steel plate to be used in oil, gas and petrochemical industry. The molybdenum content helps to increase the tensile strength of ASTM A387 Grade 22 Class 2 steel plate at elevated temperatures. ASTM A387 Grade 22 Class 2 steel plate bears much higher heat resistance when compared to other carbon steels.
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