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ASTM A204 grade B Sheets and Plates

ASTM A204 Grade B sheets and plates are top-notch steel products that are alloyed with molybdenum, specifically crafted for pressure vessels and high-temperature applications. Renowned for their impressive strength, durability, and resistance to both corrosion and heat, these steel plates find extensive use in industries like petrochemical, power generation, and boiler manufacturing. This grade falls under the ASTM A204 specification, which pertains to pressure vessel plates made from molybdenum alloy steel. Typically, the material is supplied in a normalized state and can be further processed through welding, forming, or machining based on the specific needs of a project.

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SA 204 GR B Sheets

Astm A204 Grade B Plate

ASTM A204 Alloy Steel Gr.B Plates

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Table of Contents

The chemical makeup of ASTM A204 Grade B consists of about 0.15% carbon, 0.90% manganese, and 0.45–0.60% molybdenum, along with trace amounts of silicon, phosphorus, and sulfur. The inclusion of molybdenum significantly boosts its mechanical properties and enhances its ability to withstand high-temperature conditions. This grade boasts a minimum yield strength of 275 MPa and a tensile strength that ranges from 485 to 620 MPa. Its heat resistance and mechanical robustness make it ideal for crafting components that are subjected to high temperatures and pressures. Additionally, ASTM A204 Grade B is known for its good weldability and formability, making it a dependable option for challenging industrial applications.

ASTM A204 grade B Sheets and Plates Specification

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

Chemical Composition Of ASTM A204 grade B Sheets and 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 Properties Of ASTM A204 grade B Sheets and Plates

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

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We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

Largest ASTM A204 grade B Sheets and Plates Manufacturer and Exporter in Bangkok, Thailand

Wiraphan Sheets and Plates based in Bangkok, Thailand, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes  Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.

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ASTM A204 Grade B sheets and plates offer numerous advantages, including exceptional strength and high-temperature resistance, making them ideal for pressure vessels, boilers, and heavy-duty structural applications. Their low alloy composition provides improved resistance to corrosion and oxidation, enhancing durability. These materials also feature excellent weldability, facilitating ease of fabrication and assembly. With superior mechanical properties, including high tensile and yield strength, ASTM A204 Grade B ensures reliable performance under challenging conditions. Its versatility, combined with resistance to wear and stress, makes it a preferred choice for demanding industrial environments.

Types of ASTM A204 grade B Sheets and Plates

Astm A204 Gr.B Low Alloy Steel Plates
ASME Sa204 Gr. b Steel Plates
Molybednum Steel Plates ASTM A204 Grb
Astm A204 Grade B Plates
A204 Grade B Steel Plates
ASTM A204 Alloy Steel Plates

Are Custom Sizes Available for ASTM A204 grade B Sheets and Plates?

Yes, we offer custom sizes for ASTM A204 grade B Sheets and Plates to meet specific project needs. Our team at Wiraphan Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@wiraphansheetsplates.com.

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Application Industry of ASTM A204 grade B Sheets and Plates

These steel sheets and plates are primarily utilized in the construction of pressure vessels, heat exchangers, boilers, and piping systems that operate under high pressure and temperature. In the petrochemical and power generation industries, you’ll often find it used in parts like reactor shells, combustion chambers, and structural supports. Its ability to resist heat and corrosion also makes it a great fit for steam processing equipment and thermal tanks. Thanks to its mechanical stability and metallurgical characteristics, ASTM A204 Grade B is a solid choice for demanding applications.

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