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A387 Gr 21

Alloy Steel A387 Gr 21 Plate is a medium-carbon alloy that contains chromium, molybdenum, manganese , and silicon for improved mechanical performance. This low-alloy steel has a higher strength than regular carbon steel and offers better corrosion resistance and increased temperature tolerance. It also produces fewer sulfide inclusions than traditional carbon steel, making it an excellent choice for heat or pressure applications. Additionally, its chrome-molybdenum properties enhance tensile strength and creep resistance, making it ideal for oil refineries and petrochemical plants. Overall, A387 Gr 21 Alloy Steel Plate is an excellent option for a medium-strength steel grade with enhanced corrosion and heat resistance.

Alloy steel Plates from the A387 Gr 21 variety are unique due to their incredible properties and uses. Such metal Plates are characterized by their high strength, machinability, and corrosion resistance capabilities. The blend of chromium, molybdenum, vanadium, silicon, and other chemical elements makes it ideal for multiple welding operations and applications. It is often used in the industrial world for vessels under pressure, heavy-duty machinery components, boilers for power generation systems, and others. Furthermore, A387 Gr 21 Plates have superior intensive heat-resistant properties, which makes them a great option for utility projects where their endurance against such conditions is called upon. Alloy steel from the A387 Gr 21 variety is an essential material as it meets many safety regulations set by industries worldwide.


FAQ's for Alloy Steel A387 Gr 21 Plates

The pressure rating of Alloy Steel A387 GR 21 Plates is up to 50,000 psi and its maximum temperature is 1,100°F (593°C).

 No, Alloy Steel A387 GR 21 Plates does not corrode easily. It has excellent corrosion resistance due to its alloyed steel composition.

The appropriate welding technique for Alloy Steel A387 GR 21Plates is SMAW (Shielded Metal Arc Welding) or GTAW (Gas Tungsten Arc Welding).

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