Shalan Steel stands out as a top manufacturer and supplier of alloy steel Grade 91 coils right in the heart of Kuala Lumpur, Malaysia. They’re all about providing top-notch materials designed for high-temperature and high-pressure applications. These coils are crafted in line with ASTM A213 and ASTM A335 standards, and they’re celebrated for their impressive creep strength, oxidation resistance, and long-lasting performance even in the toughest environments. Thanks to cutting-edge production technology and rigorous quality checks, Shalan Steel ensures that their Grade 91 alloy steel coils are precision-engineered for industries like power generation, petrochemical, oil & gas, and heat exchanger manufacturing, serving both local and international markets with unwavering reliability.
The alloy steel Grade 91 coils are made from a robust blend of 9% chromium and 1% molybdenum, with added vanadium and niobium to boost toughness and structural integrity at high temperatures. They deliver remarkable tensile and yield strength, exceptional creep resistance, and outstanding protection against oxidation. Even after extended exposure to high operating temperatures, the material retains its mechanical properties, making it a fantastic choice for critical 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.
Shalan Steel based in Kuala lumpur, Malaysia 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. Shalan 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!
These coils find their way into the production of boiler tubes, superheaters, reheaters, and heat exchangers in both thermal and nuclear power plants. In the oil & gas industry, they’re essential for refinery heaters, high-pressure steam lines, and offshore processing units. The petrochemical sector relies on them for reactors, processing vessels, and high-temperature piping systems. With their blend of high strength, thermal stability, and corrosion resistance, alloy steel Grade 91 coils are the go-to option for applications where durability and safety are crucial under extreme operating conditions.
Shalan 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 Kuala lumpur, Malaysia.
Copyright 2025 Shalan Steel. All rights reserved
