Yousef Steel, a reputable manufacturer and supplier located in Riyadh, Saudi Arabia, proudly offers top-notch **ASTM A204 Grade B sheets and plates**. These products are specifically crafted for pressure vessels and high-temperature applications. Made from molybdenum-alloyed steel, these plates deliver exceptional strength, thermal resistance, and corrosion resistance, making them perfect for industries like petrochemical, oil & gas, power generation, and boiler manufacturing.
**ASTM A204 Grade B** is a carbon-molybdenum alloy steel plate that boasts improved mechanical properties at elevated temperatures. It has a **minimum yield strength of 275 MPa** and **tensile strength ranging from 485–620 MPa**. The inclusion of **molybdenum (0.45% max)** enhances hardenability, strength, and creep resistance, making it an excellent choice for components that endure prolonged heat and stress. These plates come in **annealed, normalized, or stress-relieved** conditions.
Standard: ASTM A204/ ASME SA204
Steel Grade: Grade B
Thickness: 6mm to 150mm
Length: 3000mm to 15000mm
Width: 1500mm to 4050mm
Delivery state: Hot Rolled
Surface: Mill Varnish, Oiled,Galvanized, Bare
Application: 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.
Yousef 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 Riyadh, Saudi Arabia.
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