EN10028-2 18MnMo4-5 is a pressure vessel steel grade that is widely used in the fabrication of boilers and pressure vessels. This grade is designed to provide excellent mechanical properties and resistance to harsh environments, making it suitable for applications in the petrochemical, chemical, and power generation industries.

Chemical Composition:

The chemical composition of EN10028-2 18MnMo4-5 is carefully controlled to ensure the material's performance and durability. The typical chemical composition includes:

· Carbon (C): 0.15-0.21%

· Silicon (Si): 0.15-0.40%

· Manganese (Mn): 1.10-1.50%

· Phosphorus (P): ≤ 0.025%

· Sulfur (S): ≤ 0.015%

· Nickel (Ni): ≤ 0.30%

· Chromium (Cr): ≤ 0.30%

· Molybdenum (Mo): 0.45-0.65%

· Copper (Cu): ≤ 0.30%

· Aluminum (Al): ≤ 0.020%

Mechanical Properties:

The mechanical properties of 18MnMo4-5 are characterized by its high strength and toughness. The following are typical mechanical properties:

· Yield Strength: ≥ 360 MPa

· Tensile Strength: 530-680 MPa

· Elongation: ≥ 19%

· Impact Energy (at -20°C): ≥ 40J

Heat Treatment:

The steel plates are normally supplied in the normalized and tempered condition. This heat treatment process ensures that the material has a uniform microstructure and optimal mechanical properties.

Available Dimensions:

TJC Steel Group offers 18MnMo4-5 steel plates in a wide range of sizes to meet various project requirements. The typical available dimensions are:

· Thickness: 6mm to 300mm

· Width: 1500mm to 4000mm

· Length: 3000mm to 18000mm

Low-Temperature Impact Test:

The steel grade is subjected to a low-temperature impact test at -20°C to ensure its toughness and reliability in cold environments. The minimum impact energy required is 40J.

Main Applications:

EN10028-2 18MnMo4-5 is commonly used in the construction of boilers, pressure vessels, and other equipment that operates under high pressure and temperature conditions. It is particularly suitable for applications where resistance to hydrogen-induced cracking is required.

TJC Steel Group Supply Cases:

TJC Steel Group has extensive experience in supplying high-quality 18MnMo4-5 steel plates to various industries. One notable supply case involved the delivery of 18MnMo4-5 plates for a petrochemical plant in Southeast Asia. The plates were used to fabricate critical components of the plant's pressure vessels, ensuring safe and efficient operation.

In conclusion, EN10028-2 18MnMo4-5 is a reliable choice for boiler and pressure vessel applications, offering a robust combination of chemical composition, mechanical properties, and heat treatment. TJC Steel Group is committed to providing high-quality materials and services to meet the demanding needs of our customers.