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Boikanyo Sheets and Plates, located in Cape Town, South Africa, stands out as a reliable manufacturer and supplier of **SA537 Class 1 Boiler Sheet and Plate** products. These carbon steel plates are specifically designed for high-pressure boiler and pressure vessel applications, adhering to strict ASME and ASTM standards. Boikanyo provides a range of thicknesses and sizes to meet custom fabrication needs, ensuring top-notch quality and performance. With a commitment to durability, weldability, and toughness, Boikanyo serves industries like power generation, oil & gas, and chemical processing, supplying dependable materials for essential boiler components and pressure-retaining equipment.
**SA537 Class 1** is a quenched and tempered carbon manganese steel plate, perfect for pressure vessels and boilers that demand high strength and outstanding fracture toughness. Its typical chemical makeup includes **carbon (≤0.22%)**, **manganese (0.50–1.00%)**, **phosphorus (≤0.035%)**, and **sulfur (≤0.035%)**. This material boasts a **minimum tensile strength of 620 MPa** and a **yield strength of 415 MPa**, along with remarkable impact toughness even at low temperatures. It’s supplied in a normalized and tempered state to enhance its mechanical properties and resistance to brittle fracture.
Grade : ASME SA 537 CL.1 Boiler and Pressure Vessel Steel Plates
Width : 1000mm-4500mm
Thickness : 5mm-150mm
Length : 3000mm-18000mm
Supply Condition : As Rolled, Normalized Rolling, Furnace Normalizing, Vacuum Degassing, Simulated Post-Weld Heat Treatment or as per customer requirement.
Impact tested : -52° C
Tempering : Notch toughness can be improved by quenched cooling from hot rolling or normalizing by the supplier. If such a faster cooling rate is agreed upon between purchaser and supplier then the steel is also to be tempered at 1200 F.
Applications : Used for Boilers and Pressure Vessels Application.
Process of Manufacturing : Hot-Rolled (HR)
| C | Mn | P | S | Si | Cr | Cu | Ni | Mo | |
| ≤ 40 mm | > 40 mm | ||||||||
| 0.24 max | 0.70/1.35 | 1.00/1.60 | 0.035 | 0.035 | 0.15/0.50 | 0.025 | 0.35 | 0.25 | 0.080 |
| Grade | Heat Treatment | Yield (MPa) | Tensile (MPa) | Elongation | Thickness | |
| A50mm | A200mm | |||||
| SA537 Class 1 | Normalized | 345 | 485/620 | 22% | 18% | ≤ 65 |
| 310 | 450/585 | 22% | 18% | > 65 ≤ 100 | ||
| Steel Grade | JIS | Germany |
| ASTM/ASME | G3115 | DIN17155 |
| A537 / SA537 | SPV36 | 19Mn5 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
SA537 Class 1 Boiler Sheet and Plate offer excellent strength, toughness, and resistance to pressure, making them ideal for use in high-temperature and high-pressure applications like boilers and pressure vessels. Their superior weldability allows for easy fabrication, while their resistance to cracking and corrosion enhances reliability in demanding environments. This steel is heat-treated to ensure improved mechanical properties, long-term durability, and performance. With excellent formability and impact resistance, SA537 Class 1 is a trusted choice for power generation, petrochemicals, and manufacturing industries.
SA537 Class 1 boiler sheet and plate are primarily used in the construction of pressure vessels and boilers that operate under high-pressure and temperature conditions. They are highly valued in industries such as power generation, chemical processing, and oil and gas. The material’s excellent weldability, high tensile strength, and thermal fatigue and pressure resistance make it ideal for manufacturing components like reactor vessels, heat exchangers, and pressure tanks. It is also used to fabricate parts that require strength and durability under demanding conditions.
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