A387Gr12CL1/A387 Grade 12 Class 1, a premium chromium-molybdenum alloy steel plate, is specifically designed for use in pressure vessels and boilers operating under high-temperature and pressure conditions. Manufactured to meet the rigorous standards of ASME SA-387/SA-387M-2019, these plates offer exceptional strength, heat resistance, and corrosion resistance, making them ideal for demanding industrial applications.

Chemical Composition:

The chemical composition of A387Gr12CL1/A387 Grade 12 Class 1 plates is carefully controlled to ensure optimal performance. The key elements and their respective ranges are as follows:

- Carbon (C): 0.05% - 0.17%

- Silicon (Si): 0.15% - 0.40%

- Manganese (Mn): 0.40% - 0.65%

- Phosphorus (P): ≤ 0.025%

- Sulfur (S): ≤ 0.025%

- Chromium (Cr): 0.80% - 1.15%

- Molybdenum (Mo): 0.45% - 0.60%

- Nickel (Ni): ≤ 0.030%

- Copper (Cu): ≤ 0.030%

These precise compositions contribute to the plate's exceptional strength, heat resistance, and corrosion resistance.

Mechanical Properties:

The mechanical properties of A387Gr12CL1/A387 Grade 12 Class 1 plates are equally impressive. The plates undergo rigorous testing to ensure they meet or exceed the following standards:

- Tensile Strength: High, ensuring structural integrity under extreme conditions

- Yield Strength: Sufficient to withstand significant loads without permanent deformation

- Elongation: Good ductility for added safety and reliability

- Hardness: Appropriately balanced for ease of fabrication and long-term durability

Heat Treatment State:

A387Gr12CL1/A387 Grade 12 Class 1 plates are typically supplied in the normalized and tempered condition. This heat treatment process enhances the material's mechanical properties, improving its resistance to creep and stress relaxation at elevated temperatures.

Size Range:

TJC Steel Group offers A387Gr12CL1/A387 Grade 12 Class 1 plates in a wide range of thicknesses, widths, and lengths to meet various application requirements. Standard thicknesses range from 6mm to 200mm, with custom sizes available upon request.

Impact Testing:

To ensure the plates' suitability for low-temperature applications, impact testing is performed at specified temperatures. The results demonstrate the material's ability to withstand sudden changes in temperature without cracking or failing.

Main Application Scenarios:

A387Gr12CL1/A387 Grade 12 Class 1 plates are widely used in the following industries and applications:

- Power generation: Boilers, superheaters, reheaters, and other critical components in fossil fuel and nuclear power plants

- Petrochemicals: Reactors, heat exchangers, and piping systems in refineries and chemical plants

- Oil and gas: Pressure vessels, piping, and other equipment in upstream and downstream operations

- Shipbuilding: High-temperature components in marine boilers and engines

TJC Steel Group Supply Cases:

TJC Steel Group, a leading supplier of high-quality steel products, has successfully delivered A387Gr12CL1/A387 Grade 12 Class 1 plates to numerous prestigious projects worldwide. Some notable supply cases include:

- A major power plant in Europe, where the plates were used to construct the boiler's superheater and reheater sections

- A petrochemical complex in the Middle East, where the plates were integral to the construction of high-temperature reactors and piping systems

- A shipbuilding project in Asia, where the plates were used to manufacture marine boilers and engines capable of withstanding extreme operating conditions

In each case, TJC Steel Group's commitment to quality, timely delivery, and exceptional customer service has earned the trust and loyalty of our clients.