As a trusted manufacturer and supplier based in the heart of Naypyidaw, Naing Steel is proud to support Myanmar’s growing industrial landscape with high-quality pressure vessel components. We specialize in providing ASME SA 387 Grade 11 Class 1 & 2 sheets and plates, materials engineered for resilience under demanding conditions. Our commitment is to deliver not just superior steel, but also reliable partnership and local expertise, ensuring your projects have a solid foundation and meet the strictest international standards for performance and safety.
The composition of this chrome-molybdenum alloy is carefully balanced, with chromium providing excellent resistance to oxidation and corrosion, while molybdenum enhances strength, especially at elevated temperatures. Mechanically, Grade 11 is defined by its robust tensile and yield strength, ensuring structural integrity under high pressure. The distinction between Class 1 and Class 2 lies in the heat treatment; Class 2 undergoes a more rigorous tempering process, resulting in superior notch toughness, making it the preferred choice for applications where low-temperature service is a critical design factor.
| Standard | ASTM A387 / ASME SA387 |
|---|---|
| Width | 1000mm-3000mm |
| Thickness | 1.0mm – 200mm |
| Production | Hot-Rolled (HR) / Cold-Rolled (CR) |
| Grade | C | Si | Mn | P | S | Cr | Mo |
| A387 Gr. 11 CL 1 / 2 | 0.04-0.17 max | 0.44-0.86 max | 0.35-0.73 max | 0.035 max | 0.035 max | 0.94-1.56 max | 0.40-0.70 max |
| Grade | A387 Gr. 11 CL 1 / 2 | |||
| A387 Gr. 11 CL 1 / 2 | Thickness mm | Yield Min Mpa | Tensile Mpa | Elongation Min % |
| t≦50 | 240 | 415-585 | 22 | |
| 50<t≦200 | 240 | 415-585 | 19 | |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Naing Steel is a trusted manufacturer and supplier of high-quality ASME SA 387 Grade 11 Class 1/2 Sheet and Plates in Naypyidaw, Myanmar. We specialize in premium steel products, including Alloy Steel, Carbon Steel, Mild Steel and Galvanized Steel, with a strong focus on Carbon Steel Sheet and Plates. Our extensive inventory also includes Pipes, Tubes, Flanges, Forged Fittings and Bars. Committed to fast delivery and exceptional customer service, we use only the finest raw materials to ensure superior strength, durability and performance for critical industrial applications. Contact us today for all your ASME SA 387 Grade 11 Class 1/2 Sheet and Plates needs!
These specialized plates are essential for constructing critical equipment across heavy industries. You will typically find them in the fabrication of pressure vessels, reactors, and distillation columns within petrochemical plants and refineries. They are equally vital for boilers and heat exchangers in power generation facilities, where their ability to maintain strength at high temperatures is paramount. Essentially, wherever there is a need for a component to safely contain gases or liquids under substantial pressure and heat, ASME SA 387 Grade 11 provides the necessary reliability and long-term performance.
Naing Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Naypyidaw, Myanmar.
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