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One well-known producer and supplier of SA537 Class 1 Boiler Sheets and Plates is Kunj Sheets and Plates, a reputable brand in Chennai, India. Renowned for producing high-performance pressure vessel steel, Kunj offers goods that meet international quality standards for maximum dependability, strength, and durability. SA537 Class 1 plates are specifically designed to be used in high-pressure heat exchangers and pressure vessels. Kunj has established itself as a reliable partner for industrial steel plate solutions by serving vital industries like oil and gas, power generation, and chemical processing with a strong commitment to quality, timely delivery, and customer satisfaction.
Heat treatment (quenching and tempering) has improved the mechanical properties of SA537 Class 1 Boiler Sheet and Plate, a carbon-manganese-silicon steel. It usually contains silicon (0.15–0.50%), phosphorus (0.035% max), sulphur (0.035% max), manganese (1.10–1.70%), and carbon (0.24% max). It has a tensile strength between 485 and 620 MPa and a minimum yield strength of 345 MPa. These plates are appropriate for high-pressure applications due to their exceptional notch toughness and impact resistance. Long-term dependability in demanding environments is ensured by the increased strength and ductility.
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.
The production of high-pressure vessels, boilers and heat exchangers for the petrochemical, power generation and oil and gas sectors makes extensive use of SA537 Class 1 Boiler Sheets and Plates. They are perfect for uses like reactors, storage tanks, and structural elements in thermal plants and chemical units because of their exceptional mechanical strength and resistance to high pressure and temperature. In offshore and marine structures where impact resistance is crucial, the plates are also recommended. Due to their superior weldability and toughness, SA537 Class 1 plates support both field fabrication and shop-built vessel construction in demanding environments.
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