A387Gr2CL2/A387 Grade 2 Class 2, a premium chromium-molybdenum alloy steel plate, is specifically designed for applications requiring exceptional high-temperature performance and corrosion resistance. Manufactured in accordance with the rigorous standards of ASTM A387/A387M and ASME SA-387/SA-387M, these plates are widely recognized for their superior mechanical properties and durability in harsh environments. TJC Steel Group, a leading supplier of high-quality steel products, offers a comprehensive range of A387Gr2CL2/A387 Grade 2 Class 2 plates tailored to meet the demanding needs of various industries.

Chemical Composition

The chemical composition of A387Gr2CL2/A387 Grade 2 Class 2 plates is meticulously controlled to ensure optimal performance. The key alloying elements include chromium (Cr) and molybdenum (Mo), which significantly enhance the steel's heat resistance and corrosion resistance. The typical chemical composition ranges are as follows:

- Carbon (C): 0.05% - 0.15%

- Silicon (Si): ≤ 0.50%

- Manganese (Mn): 0.30% - 0.60%

- Phosphorus (P): ≤ 0.025%

- Sulfur (S): ≤ 0.035%

- Chromium (Cr): 2.00% - 2.50%

- Molybdenum (Mo): 0.90% - 1.10%

Mechanical Properties

A387Gr2CL2/A387 Grade 2 Class 2 plates exhibit exceptional mechanical properties, making them ideal for high-stress applications. Key mechanical properties include:

- Tensile Strength (σb/MPa): 515 - 690 MPa

- Yield Strength (σs/MPa): ≥ 310 MPa

- Elongation After Fracture (δ5/%): ≥ 18%

- Reduction of Area (ψ/%): ≥ 45%

These plates also undergo rigorous testing to ensure they meet or exceed the required standards for impact toughness, ensuring safe and reliable performance in critical applications.

Heat Treatment State

A387Gr2CL2/A387 Grade 2 Class 2 plates are typically supplied in the normalized + tempered condition. The normalization temperature does not exceed 968°C, while the tempering temperature is maintained at a minimum of 675°C. This heat treatment process ensures optimal microstructure and mechanical properties, enhancing the steel's resistance to creep and stress relaxation at elevated temperatures.

Size Range

TJC Steel Group offers A387Gr2CL2/A387 Grade 2 Class 2 plates in a wide range of sizes to meet various application requirements. The typical size range includes:

- Thickness: 8mm - 300mm (special sizes can be customized)

- Width: 1600mm - 2500mm

- Length: 6000mm - 12000mm

Impact Testing

To ensure the plates' ability to withstand sudden temperature changes and impact loads, A387Gr2CL2/A387 Grade 2 Class 2 plates undergo rigorous impact testing. The test results confirm the steel's excellent toughness and resistance to cracking, even at low temperatures.

Main Application Scenarios

A387Gr2CL2/A387 Grade 2 Class 2 plates are widely used in various industries where high-temperature and corrosion resistance are critical. Key application scenarios include:

- Pressure vessels such as reactors, heat exchangers, and storage tanks

- Boiler components like superheaters, reheaters, and steam pipes

- Petrochemical equipment exposed to harsh chemicals and high temperatures

- Power generation facilities, particularly those utilizing steam turbines

- Nuclear reactors and associated pressure vessels

TJC Steel Group Supply Cases

TJC Steel Group has a proven track record of supplying A387Gr2CL2/A387 Grade 2 Class 2 plates to numerous prestigious projects worldwide. Some notable supply cases include:

- Supplying plates for the construction of high-pressure reactors in a major petrochemical plant