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Nial Sheets and Plates is a well-respected manufacturer and supplier of SA 204 GR A/B Sheets and Plates, based in Houston, USA. They specialize in top-notch alloy steel plates, ensuring that their materials comply with the strict ASME and ASTM standards required for pressure vessel applications. The SA 204 Grade A and B plates are specifically crafted for high-temperature service, providing outstanding strength, corrosion resistance, and excellent weldability. Nial caters to a wide range of industries, including petrochemical, refinery, power generation, and boiler manufacturing. With a commitment to precision, timely delivery, and deep technical know-how, Nial has become a reliable source for SA 204 GR A/B plates in markets around the world.
The SA 204 GR A/B Sheets and Plates are made from molybdenum-alloyed steels, produced according to ASTM A204/ASME SA204 specifications. These plates include carbon (up to 0.27%), manganese (0.90–1.50%), and minimal amounts of phosphorus and sulfur (max 0.035% each), along with molybdenum (0.45–0.65%), which boosts their corrosion resistance and high-temperature strength. Grade A boasts a tensile strength of 415–585 MPa, while Grade B ranges from 485–620 MPa, with yield strengths of 240 MPa and 275 MPa, respectively. These plates retain their mechanical properties even under heat and pressure, ensuring reliable performance in boilers, pressure vessels, and various thermal processing systems.
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.
Nial Sheets and Plates based in Houston, USA, 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.
SA 204 Grade A/B sheets and plates offer several advantages, including excellent strength, toughness, and resistance to high-temperature environments, making them suitable for pressure vessels, boilers, and heat exchangers. They have good weldability and formability, allowing for easy fabrication and assembly. The molybdenum content in Grade A enhances its resistance to corrosion and scaling at elevated temperatures. Both grades provide excellent durability and impact resistance, ensuring long-term performance in challenging industrial conditions. These properties make SA 204 GR A/B ideal for use in petrochemical, power generation, and shipbuilding industries.
Yes, we offer custom sizes for SA 204 GR A/B Sheet and Plates to meet specific project needs. Our team at Nial Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
SA 204 GR A/B Sheets and Plates find extensive use in industries that require high-temperature resistance and structural integrity. In the petrochemical and refining sectors, these plates are essential for constructing pressure vessels, heat exchangers, and reactors. They are also utilized in thermal power plants for boiler components and steam drum construction. Thanks to their strength and weldability, SA 204 plates are perfect for storage tanks, heavy-duty pipelines, and other pressure-retaining applications. Their ability to withstand creep and thermal stress makes them well-suited for environments with fluctuating temperatures and high internal pressures.
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