TJC Steel Group is proud to present the A387Gr9CL2/A387 Grade 9 Class 2 chromium-molybdenum alloy steel plates, a premium material specifically designed for use in pressure vessels and boilers in various industries. This high-performance steel plate is widely recognized for its exceptional chemical composition, mechanical properties, heat treatment capabilities, and versatility in various applications.

Chemical Composition:

The A387Gr9CL2/A387 Grade 9 Class 2 steel plates boast a carefully balanced chemical composition that ensures optimal performance. The key elements and their specified ranges are as follows:

- Carbon (C): ≤ 0.15%

- Silicon (Si): ≤ 1.00%

- Manganese (Mn): 0.30-0.60%

- Phosphorus (P): ≤ 0.025%

- Sulfur (S): ≤ 0.030%

- Molybdenum (Mo): 0.90-1.10%

- Chromium (Cr): 8.00-10.00%

This composition, particularly the chromium and molybdenum content, imparts exceptional heat resistance, corrosion resistance, and mechanical strength to the steel plates.

Mechanical Properties:

The A387Gr9CL2/A387 Grade 9 Class 2 steel plates exhibit remarkable mechanical properties, making them suitable for demanding applications. Key mechanical properties include:

- Tensile Strength: 515-690 MPa

- Yield Strength: ≥ 310 MPa

- Elongation (% in 2"): ≥ 18%

- Reduction of Area: ≥ 40%

These properties ensure that the steel plates can withstand high pressures, temperatures, and mechanical stresses without compromising their structural integrity.

Heat Treatment State:

The A387Gr9CL2/A387 Grade 9 Class 2 steel plates undergo rigorous heat treatment to achieve the desired microstructure and properties. The standard heat treatment comprises annealing, normalizing, and tempering. Alternatively, upon the purchaser's agreement, accelerated cooling from the austenitizing temperature using air blast or liquid quenching followed by tempering can be employed. The minimum tempering temperature is 675°C. If not specified, the plates are delivered in the stress-relieved or annealed condition.

Size Range:

TJC Steel Group offers A387Gr9CL2/A387 Grade 9 Class 2 steel plates in various thicknesses, widths, and lengths to cater to diverse customer requirements. The typical size range includes:

- Thickness: 6-70 mm

- Width: 2000-2700 mm

- Length: 6000-12000 mm

Custom sizes are also available upon request, ensuring flexibility and convenience for our clients.

Impact Testing:

The A387Gr9CL2/A387 Grade 9 Class 2 steel plates undergo rigorous impact testing to ensure their ability to withstand low-temperature conditions. The plates are tested at specified temperatures to assess their Charpy V-notch impact energy, ensuring excellent toughness and impact resistance.

Main Application Scenarios:

The exceptional properties of A387Gr9CL2/A387 Grade 9 Class 2 steel plates make them ideal for use in various industries, including:

- Petroleum Industry: Used in the construction of high-temperature reactors, heaters, and other pressure vessels that operate under extreme conditions.

- Chemical Industry: Employed in the fabrication of chemical reactors, storage tanks, and heat exchangers that require resistance to corrosive environments.

- Power Generation: Ideal for high-temperature steam boilers, superheaters, and reheaters in thermal power plants.

- Oil & Gas Processing: Utilized in piping systems, separators, and other equipment that must withstand high pressures and temperatures.

TJC Steel Group Supply Cases:

TJC Steel Group has a proven track record of supplying A387Gr9CL2/A387 Grade 9 Class 2 steel plates to prestigious projects worldwide. Some notable supply cases include:

- Petrochemical Complex: Supplied steel plates for the construction of high-temperature reactors and heat exchangers in a major petrochemical plant, ensuring reliable operation under demanding conditions.