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Nestled in the industrial heart of Hamilton, Will Sheetsandplates has built a strong reputation as a trusted local source for high-performance steel. We take particular pride in supplying SA537 Class 2 boiler plate, a material chosen by engineers and fabricators who cannot compromise on safety or durability. Our team understands the critical nature of your projects, which is why we focus on providing not just the product, but the reliable expertise and support that our clients in New Zealand and beyond have come to depend on for their most demanding applications.
The strength of SA537 Class 2 lies in its carefully balanced composition and mechanical properties. This carbon-manganese-silicon steel is heat-treated to achieve a fine-grained, normalized or stress-relieved structure, giving it exceptional toughness. It offers a high minimum yield strength, ensuring it can handle significant structural loads, combined with good ductility that helps it resist cracking under pressure. This specific combination of characteristics is what makes it a go-to material for situations where reliability under stress is absolutely non-negotiable.
Grade : ASME SA 537 CL.2 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 | Tensile (MPa) | Yield (MPa) | Elongation |
| SA537 Class 2 | Quenched and tempered | 550–690 | 415 | 22% |
| 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 2 boiler sheet and plate offer excellent strength and durability, making them ideal for pressure vessels and boiler applications. They are heat-treated to improve their hardness, ensuring resistance to high-pressure environments and elevated temperatures. The material demonstrates excellent weldability, enabling easy fabrication into complex shapes. Its resistance to corrosion and cracking under stress makes it suitable for harsh industrial environments. Additionally, SA537 Class 2 provides good toughness and impact resistance, ensuring long-term reliability in demanding applications such as power plants and chemical processing.
This plate is predominantly specified for the construction of pressure vessels and boilers that operate at moderate to lower temperatures, often serving critical roles in power generation and petrochemical plants. Its proven toughness also makes it an excellent choice for other heavily stressed structures, including mining equipment and large-scale storage tanks. Essentially, wherever a project demands a steel that can be trusted to perform safely under immense pressure and demanding conditions, SA537 Class 2 provides the fundamental integrity required for long-term, reliable service.
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