What is A387 gr 12 pressure vessel steel plate

A387 gr 12 pressure vessel steel plate is chrome molybdenum steel with good corrosion and oxidation resistance, which makes it the first choice for sour service applications in the oil and gas industry. A387 gr 12 is available in 2 strength levels: ASTM A387 gr 12 cl 1 and ASTM A387 gr 12 cl 2. Below is description of A387 gr 12 pressure vessel steel plate chemical composition and mechanical property, and we can find differences between ASTM A387 gr 12 cl 1 and ASTM A387 gr 12 cl 2.

Chemical composition of A387 gr 12 pressure vessel steel plate:

Mechanical property of A387 gr 12 pressure vessel steel plate:

A387 gr 12 pressure vessel steel plate is intended primarily for welded boilers, pressure vessels and tanks for elevated temperature service. It has been used in petrochemical, hydrocarbon processing and coal conversion industries for decades. A387 gr 12 pressure vessel steel plate can get high level of toughness through quenching and tempering treatment.