ASTM A204 Gr.B boiler and pressure vessel steel A204 Grade B Alloy steel plate

A204 Gr.B Boiler and Pressure Vessel steel Description

A204 Gr.B boiler and pressure vessel steel is a high-quality alloy steel plate mainly used for manufacturing high-pressure boilers and pressure vessels. A204 Grade B pressure vessel steel complies with American ASTM standards. A204 Gr.b steel has good welding performance, high strength and corrosion resistance, and is widely used in pressure vessel and boiler manufacturing in petroleum, chemical, electric power, pharmaceutical and other industries.

The chemical composition of ASTM A204 Grade B pressure vessel steel mainly includes elements such as carbon, silicon, manganese, phosphorus, sulfur and molybdenum. Among them, carbon is an important element to ensure the strength and hardness of steel plates, silicon and manganese can increase the strength and hardness of steel plates, and phosphorus and sulfur help to improve the toughness of steel plates. Molybdenum is one of the important elements that improves the corrosion resistance of steel plates.

The mechanical properties of A204 Grb boiler pressure vessel steel mainly include tensile strength, yield point and elongation. Specifically, its tensile strength range is generally 65-85 ksi [450-585 MPa], its yield point is generally 37-48 ksi [255-310 MPa], and its elongation is generally 19%-24%. The physical properties of A204 Grb boiler and pressure vessel steel mainly include density, thermal expansion coefficient and thermal conductivity. Its density is approximately 785 kg/m³, its thermal expansion coefficient is 1.1×10-5 m/m·℃, and its thermal conductivity is 12 W/m·℃. These physical performance indicators make A204 Grb have excellent stability and corrosion resistance in high temperature environments.

Characteristics of A204 Grb boiler pressure vessel steel:
High strength and toughness: A204 Grb boiler pressure vessel steel has high tensile strength and yield point, and also has ideal elongation, which can meet the high strength and toughness requirements of various high-pressure vessels and boiler manufacturing.
Excellent corrosion resistance: Due to its high molybdenum content, A204 Grb boiler and pressure vessel steel has good corrosion resistance and can resist the erosion of a variety of acidic media.
Easy to weld: A204 Grb has good welding performance, no cracks after welding, and has less impact on the toughness of the welding heat affected zone.
Good high temperature performance: A204 Grb can still maintain good strength and stability at high temperatures and can be adapted to applications in various high temperature environments.

A204 Gr.B Boiler and Pressure Vessel steel Datasheet

Thickness: 3-400mm customizable
Length: 10-12000mm customizable
Width: 10-3200mm customizable
Tolerance: +-3%
Technology: Hot Rolled /Cold Rolled

A204 Gr.B Boiler and Pressure Vessel steel Chemical composition

A204 Gr.B Boiler and Pressure Vessel steel Mechanical Properties

Equivalent Grade of A204 Gr.B Boiler and Pressure Vessel steel