ASTM A387 hot rolling chrome moly alloy steel plate

ASTM A387 hot rolling chrome moly alloy steel plate is designed specifically for high-temperature pressure vessels, with typical grades including Gr11, Gr22, etc. It achieves high temperature resistance and creep resistance through an alloy combination of chromium (1-9%) and molybdenum (0.5-1%). The hot rolling process gives it a uniform grain structure and excellent machinability, making it suitable for equipment manufacturing in fields such as petrochemicals and power.

A387 steel plate is divided into two categories based on strength: CL1 and CL2. Among them, CL1 needs to undergo ultrasonic testing to ensure that there are no defects inside, while CL2 is suitable for scenarios with higher strength requirements. The delivery status is usually normalized+tempered, and some grades can accept annealing treatment to meet different working conditions.

Domestic corresponding grades such as 15CrMoR (corresponding to Gr12), 12Cr2Mo1R (corresponding to Gr22), etc. are widely used in hydrogenation reactors, synthesis towers and other equipment. Its resistance to hydrogen corrosion and oxidation is significantly better than that of ordinary carbon steel, and A387 chrome moly alloy steel can still maintain structural stability in high temperature environments of 480-580 ℃.