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Smith Fittings, a reputable manufacturer and supplier located in Canberra, Australia, specializes in high-quality SA 285 Grade B Boiler Sheets and Plates, perfect for moderate-pressure and temperature applications. These carbon steel plates are celebrated for their excellent weldability, formability, and durability, making them a go-to choice for industrial fabrication. With a strong focus on quality control, Smith Fittings guarantees precision engineering and dependable performance in every product they offer. Their dedication to quality, innovation, and customer satisfaction has established them as a leading supplier of pressure vessel and boiler steel materials throughout Australia’s industrial landscape.
SA 285 Grade B Boiler Sheets and Plates are primarily made up of carbon (up to 0.22%), manganese (0.90–1.30%), phosphorus (0.035%), sulfur (0.035%), and silicon (0.13–0.45%). These plates boast a minimum tensile strength of 450–585 MPa and a yield strength of 220 MPa, ensuring they deliver outstanding strength, ductility, and weldability. Their well-balanced chemical composition provides good impact resistance, making them suitable for moderate-pressure environments where stability and reliability are crucial.
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.
These SA 285 Grade B Boiler Sheets and Plates find extensive use in industries that demand dependable materials for low- to moderate-pressure applications. They are perfect for crafting boilers, storage tanks, heat exchangers, and pressure vessels in oil refineries, power plants, and petrochemical sectors. With their excellent forming and welding characteristics, these plates ensure easy fabrication and a long service life. Their strength, toughness, and pressure resistance make them a favored option for industrial construction, machinery fabrication, and general engineering projects.
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