At Esha Steel, we proudly supply premium ASME SA 387 Grade 11 Class 1/2 Sheets and Plates to industries across Kolkata and nationwide. Manufactured to ASME standards, these sheets and plates are designed to perform reliably under high temperatures and pressure, providing durability and safety for critical industrial applications. Esha Steel ensures precise dimensions, strict quality control, and superior mechanical properties. Trusted in power generation, petrochemical, and process industries, Grade 11 Class 1/2 sheets and plates offer excellent toughness, heat resistance, and structural integrity, making them ideal for boilers, pressure vessels, and heat exchangers.
ASME SA 387 Grade 11 Class 1/2 Sheets and Plates are made from alloy steel with controlled amounts of carbon, chromium, molybdenum, and manganese, along with small amounts of phosphorus, sulfur, and silicon. This chemical composition ensures high-temperature strength, creep resistance, and corrosion resistance. Mechanically, the plates provide tensile strength of 485–620 MPa, yield strength of 260–415 MPa, and good elongation and impact toughness. Heat treatment and normalization improve hardness, dimensional stability, and mechanical performance. These properties make Grade 11 sheets and plates suitable for high-pressure, high-temperature applications requiring reliability and long-term service.
| 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.
Esha Steel is a trusted manufacturer and supplier of high-quality ASME SA 387 Grade 11 Class 1/2 Sheet and Plates in Kolkata India. 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!
ASME SA 387 Grade 11 Class 1/2 Sheets and Plates are widely used in boilers, pressure vessels, heat exchangers, and high-temperature piping systems. Industries such as power plants, chemical plants, and petrochemical facilities rely on them for strength, durability, and consistent performance under elevated temperature and pressure. They are also ideal for fabrication of welded assemblies, structural supports, and industrial components requiring creep resistance, toughness, and heat-resistant performance. With excellent weldability, dimensional stability, and mechanical properties, Grade 11 Class 1/2 sheets and plates ensure safe, efficient, and long-lasting operation in demanding industrial and process applications.
Esha 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 Kolkata India.
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