ASTM A204 Grade B Sheets and Plates are specialized steel materials infused with molybdenum, crafted specifically for pressure vessel applications that demand high strength, heat resistance, and excellent weldability. Shalan Steel, a reputable manufacturer and supplier located in Kuala Lumpur, Malaysia, offers top-notch A204 Grade B plates that are extensively utilized throughout Malaysia and Southeast Asia in boilers, heat exchangers, and various industrial pressure systems.
This grade of steel features carbon (up to 0.28%), manganese, and 0.45–0.65% molybdenum, which significantly boosts its strength and performance at high temperatures. With a minimum yield strength of 275 MPa and a tensile strength that ranges from 480 to 620 MPa, these plates are usually provided in a normalized state to guarantee consistent mechanical properties and structural integrity in high-pressure and elevated temperature settings.
Standard:Â ASTM A204/ ASME SA204
Steel Grade:Â Grade B
Thickness:Â 6mm to 150mm
Length:Â 3000mm to 15000mm
Width:Â 1500mm to 4050mm
Delivery state:Â Hot Rolled
Surface: Mill Varnish, Oiled,Galvanized, Bare
Application:Â steel boiler plates, high temperature pressure vessel plates
| Grade | Chemical Composition(%) | ||||
| P | Mn≥ | C | Si | S | |
| ASTM A204 Grade B(A204GRB) | 0.035 | 0.98 | 0.20 | 0.13-0.45 | 0.035 |
| Mechanical Property | A204 Grade B |
|---|---|
| [MPa] Tensile strength, kis | 70-90 [485-620] |
| min, % Elongation in 2 in. [50 mm] | 21 |
| [MPa] Yield strength, min, kis | 40 [275] |
| min, % Elongation in 8 in. [200 mm] | 17 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
ASTM A204 Grade B plates and sheets have wide usage in high-temperature and high-pressure applications due to the fact that they possess high strength, heat resistance, and corrosion resistance. They are used very widely in the production of pressure vessels, boilers, and heat exchangers for utilization in petrochemical, power plant, and refinery industries The molybdenum-alloy steel plates offer resistance and reliability even in harsh environments and are suited for fabrication in furnace equipment, reactors, and storage tanks. Their greater weldability and toughness provide effective performance in adverse conditions, backing up demanding uses in chemical plants, shipbuilding, and industrial equipment where high-temperature strength is critical.
Shalan Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Kuala lumpur, Malaysia.
Copyright 2025 Shalan Steel. All rights reserved
