Esha Steel stands out as a top-notch manufacturer and supplier of high-quality Alloy Steel Grade 91 Coils, proudly based in Kolkata. They specialize in delivering durable and precision-engineered steel solutions tailored for demanding industrial applications. With state-of-the-art manufacturing facilities and a commitment to strict quality control, Esha Steel guarantees exceptional strength, heat resistance, and reliability in every coil they produce. Their Alloy Steel Grade 91 Coils are well-known for their impressive toughness, corrosion resistance, and outstanding performance even in extreme conditions. Catering to industries like power generation, petrochemicals, refineries, and heavy engineering, Esha Steel consistently provides products that blend durability, precision, and efficiency, earning the trust of their customers through timely deliveries and top-notch quality.
These Alloy Steel Grade 91 Coils are crafted from a special steel alloy infused with chromium, molybdenum, vanadium, and niobium, which significantly boosts their mechanical and thermal properties. They showcase remarkable tensile strength, creep resistance, hardness, and toughness, especially under high-temperature conditions. On a mechanical level, they offer dimensional stability, fatigue resistance, and long-lasting durability. Thanks to their robust chemical composition, these coils deliver reliable performance in challenging environments, making them perfect for applications that demand exceptional strength, thermal resistance, and sustained operational efficiency in high-temperature and high-pressure industrial processes.
| Specifications | ASTM A387 / ASME SA387 |
| Standard | ASTM, ASME and API |
| Thickness | 4.0mm – 100mm |
| Specialize | Shim Sheet, Perforated Sheet, B. Q. Profile. |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Grade | ASTM A387 GR.91 |
| Grade | C | Ni | Mn | S | V | Al | Si | Nb | Cr | Mo | Nitrogen | P |
| A387 GR.91Â | 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 | 0.80-2.10 max | 0.025-0.080 max | 0.025 max |
| Grade | A387 GR.91 CL.2 | |||
| A387 GR.91Â | 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 based in Kolkata India is a trusted manufacturer and supplier for Alloy Steel Grade 91 Coils of great quality. In fact, we have earned our reputation for providing a variety of top-notch steel products-such as Structural Steel, Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel-with emphasis on Structural Steel Sheets and Plates. Basic product lines include a complete range of Pipes, Tubes, Flanges, Forged Fittings, Bars, and other forms. Esha Steel is committed to its delivery and customer service, thus ensuring that they procure the best raw materials to guarantee high strength and durability with performance specifically for critical industrial applications. Contact us anytime for your Structural Steel Sheet and Plate needs!
Alloy Steel Grade 91 Coils find extensive use in industries that require steel solutions capable of withstanding high temperatures and pressures. In power plants, they are utilized for superheater coils, reheater tubes, boiler components, and heat exchangers, all thanks to their superior creep strength and thermal stability. The petrochemical and refinery sectors rely on these coils for furnace components, process lines, and high-temperature fluid transfer. Additionally, they are essential in heavy engineering, industrial machinery, and mechanical equipment, where durability and corrosion resistance are paramount.
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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