Aatir Steel, located in Cairo, Egypt, stands out as a reliable manufacturer and supplier of Alloy Steel Grade 91 Coils, providing top-notch materials crafted for the toughest industrial settings. These coils are celebrated for their remarkable strength, thermal stability, and impressive resistance to oxidation and corrosion. Produced with meticulous attention to detail and a strong commitment to international quality standards, Aatir Steel ensures that its Grade 91 coils are perfectly suited for industries that demand exceptional performance under high temperatures and pressures, such as power generation, petrochemicals, and heavy engineering.
The composition of Alloy Steel Grade 91 Coils primarily includes chromium (8–9.5%) and molybdenum (0.85–1.05%), along with other elements like vanadium, niobium, nitrogen, carbon, and manganese, all of which work together to boost strength, hardenability, and thermal resistance. These coils boast a minimum tensile strength of about 585 MPa and a yield strength of 415 MPa, along with good elongation and creep resistance. They undergo heat treatment and normalization to ensure stability and mechanical performance at high temperatures, making them ideal for high-stress and long-term service conditions.
| 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.91 | 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.91 | 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.
Jaxon Steel based in Cairo, Egypt 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. Jaxon 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 their place in various applications where high-temperature strength and oxidation resistance are essential. Common uses include components for boilers and superheaters, heat exchangers, pressure vessels, and piping systems in both thermal and nuclear power plants. Additionally, these coils are utilized in the construction of industrial furnaces and equipment for petrochemical processing, where they must endure harsh thermal cycling and corrosive environments. With their long service life and outstanding mechanical properties, Grade 91 coils are a top choice for demanding applications.
Aatir 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 Cairo, Egypt.
Copyright 2025 Aatir Steel. All rights reserved
