At Esha Steel, we proudly supply premium ASME SA 387 Grade 91 Class 1/2 Sheets and Plates to industries across Kolkata and nationwide. Manufactured to ASME standards, these sheets and plates are engineered for high-temperature and high-pressure applications in power generation, petrochemical, and industrial sectors. Esha Steel ensures precise dimensions, strict quality control, and superior mechanical performance. Trusted by engineers and fabricators, Grade 91 Class 1/2 sheets and plates provide excellent creep resistance, toughness, and durability, making them ideal for boilers, pressure vessels, and heat exchangers in demanding industrial environments.
ASME SA 387 Grade 91 Class 1/2 Sheets and Plates are made from alloy steel with controlled carbon, chromium, molybdenum, vanadium, niobium, and manganese content. This composition enhances high-temperature strength, creep resistance, and corrosion resistance. Mechanically, the plates offer a tensile strength of 585–760 MPa, yield strength of 415–620 MPa, and good elongation, ensuring reliable performance under elevated temperature and pressure. Their microstructure provides excellent weldability and toughness. Heat treatment and normalization processes further improve hardness and dimensional stability, making these sheets and plates suitable for high-stress, high-temperature applications in boilers, pressure vessels, and heat exchangers.
| Standard | ASTM A387 / ASME SA387 |
|---|---|
| Width | 1000mm-3000mm |
| Thickness | 1.0mm – 200mm |
| Production | Hot-Rolled (HR) / Cold-Rolled (CR) |
| Grade | C | Ni | Mn | S | V | Al | Si | Nb | Cr | Mo | Nitrogen | P |
| A387 GR.91 CL.1 & 2 | 0.06-0.15 max | 0.43 max | 0.25-0.66 max | 0.012 max | 0.16-0.27 max | 0.05 max | 0.18-0.56 max | 0.05-0.11 max | 7.90-9.60 max | 0.80-1.10 max | 0.025-0.080 max | 0.025 max |
| Grade | A387 GR.91 CL.1 &2 | |||
| A387 GR.91 CL.1 &2 | Thickness mm | Yield Min Mpa | Tensile Mpa | Elongation Min % |
| t≦50 | 415 | 585-760 | 18 | |
| 50<t≦200 | – | – | – | |
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 91 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 91 Class 1/2 Sheet and Plates needs!
ASME SA 387 Grade 91 Class 1/2 Sheets and Plates are widely used in boilers, steam pipelines, heat exchangers, and pressure vessels operating at elevated temperatures and pressures. Industries such as power plants, petrochemical plants, and industrial process facilities rely on them for high-temperature strength and long-term reliability. The plates are also ideal for fabrication of high-pressure piping systems, structural supports, and mechanical assemblies where creep resistance, toughness, and corrosion resistance are critical. With excellent weldability and dimensional stability, Grade 91 Class 1/2 sheets and plates ensure safe, efficient, and durable performance in demanding high-temperature industrial 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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