ASTM A387 Grade 9 is a chrome-molybdenum which is an ideal material for welded pressure vessels and boilers used in elevated temperature service. They have excellent resistance to high temperature and corrosion, this type of steel is commonly used in the oil, gas, petrochemical, and power generation industry. SA 387 gr 9 chemical requirements are carbon 0.15max, manganese 0.25-0.66, phosphorus 0.030max, sulphur 0.030max, silicon 1.05max, chromium 7.9-10.1, molybdenum 0.85-1.15. A387 Grade 9 Plate is used because of its high mechanical strength, hardness, property. It provides toughness and hardness at high temperatures, they provide good resistance to environmental corrosion in reducing the temperature. A387 Grade 9 plates are easy to install, have sturdiness, longer service life. They are highly demanded due to the features of good resistance to oxidation and corrosion, dimensionally accurate precise design, high strength and toughness, rugged construction, flexibility, and long-last