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Based in Chennai, India, Kunj Sheets and Plates is a well-known producer and supplier of SA285 Grade B Boiler Sheets and Plates. Kunj is well-known for their dedication to quality and client satisfaction. They provide boiler-quality plates for pressure vessel and structural applications that satisfy strict industry standards. The dependable performance of SA285 Grade B plates in moderate-pressure settings is well known. Kunj guarantees accurate production, prompt delivery, and customised specifications to satisfy the demands of customers in sectors like energy, oil and gas, chemical processing, and thermal power generation thanks to its state-of-the-art facilities and knowledgeable staff.
For fusion-welded pressure vessels, SA285 Grade B Boiler Sheet and Plate is a carbon steel plate with low to intermediate tensile strength. Typically, it contains up to 0.28% carbon, 0.90–1.30% manganese, 0.035 percent phosphorus, and 0.035 percent sulphur. Tensile strength ranges from 380 to 515 MPa, and the minimum yield strength is 165 MPa. Because this grade isn’t heat-treated, it has outstanding formability and weldability. It is perfect for low-pressure and moderate-temperature operations because it provides reliable performance in non-critical pressure environments.
Grade : Pressure Vessel Plates, Carbon Steel, Low- and Intermediate-Tensile Strength – A285 Gr.B
Width : 1000mm-4500mm
Thickness : 5mm-300mm
Length : 3000mm-18000mm
Production : Hot-Rolled (HR)
Heat Treatment : Rolled / Normalised/N+T/QT
| Element | C % Max | Si % Max | Mn % Max | P % Max | S % Max |
| Gr B | 0.22 | 0.08 – 0.45 | 0.98 | 0.035 | 0.035 |
| Mechanical Property SA285 Grade B | Tensile strength, kis [MPa] | Yield strength, min, kis [MPa] | Elongation in under [50mm], min, % | Elongation in 8inch or under [50mm-200mm], min, % |
| SA285 Gr B | 345-485 | 185 | 28 | 25 |
| GRADE | ASTM | EN | GB |
| Grade B | ASME SA285/285M | – | – |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
SA285 Grade B Boiler Sheet and Plate offer several key advantages, making them ideal for pressure vessels and boiler applications. They provide excellent weldability, ensuring strong and reliable joints. The steel’s ability to withstand low to moderate-pressure environments ensures safe operation in boilers and heat exchangers. They have good formability, allowing for easy fabrication into complex shapes. The material’s balance of strength and toughness ensures durability in service, while its cost-effectiveness makes it a popular choice for industrial applications requiring a balance of performance and affordability.
The main applications for SA285 Grade B Boiler Sheet and Plate are in the construction of storage tanks, low-pressure boilers, and pressure vessels where moderate strength is needed. It is widely used in a variety of industries, including thermal power plants, chemical processing, water treatment facilities, and oil refineries. Applications requiring the containment of gases and liquids at low to moderate pressures can also benefit from these plates. They are frequently used for structural elements and cylindrical tank constructions because of their superior weldability and simplicity of fabrication. They are a viable option for common pressure service applications due to their affordability and adaptability.
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Chennai, India
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