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Located in the heart of Hamilton, Will Sheetsandplates is a trusted manufacturer and supplier dedicated to providing robust materials for New Zealand’s industrial landscape. We take pride in offering SA285 Grade B Boiler Sheet and Plate, a product synonymous with reliability and safety in high-pressure environments. Our team understands the critical nature of your projects, ensuring you receive material that isn’t just a commodity, but a foundational component built to perform under demanding conditions, backed by our local expertise and commitment to quality.
The SA285 Grade B composition is primarily carbon steel, offering an excellent balance of strength and manufacturability. Its key mechanical properties make it ideally suited for its purpose; it provides dependable tensile strength and yield strength to withstand significant internal pressures. This grade is known for its good weldability and formability, which are essential for fabricating the complex shapes required in boiler construction. Essentially, it’s a material engineered for resilience, ensuring structural integrity when it matters most.
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 primary use for SA285 Grade B is, as the name implies, in the fabrication of boilers and pressure vessels. You’ll find this plate material in critical components like furnace casings, shells, and other sections that must safely contain steam and hot water. Beyond core boiler applications, its reliable performance under stress also makes it a suitable choice for large storage tanks and other structures in the petrochemical and power generation industries. It’s the go-to material for projects where containing pressure is a non-negotiable safety requirement.
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