Dang Steel, a top-notch manufacturer and supplier based in Da Nang, Vietnam, proudly presents its high-quality **Alloy Steel Grade 91 Coils**. These coils are celebrated for their remarkable strength, durability, and resistance to heat. Crafted to excel in high-pressure and high-temperature settings, they are produced with precision and consistency, adhering to international standards. Industries such as power generation, petrochemicals, boilers, and heat exchangers have a strong demand for Alloy Steel Grade 91 Coils from Dang Steel. Thanks to their outstanding performance and longevity, these coils are trusted solutions for critical industrial applications where strength and stability are essential.
**Alloy Steel Grade 91 Coils** are made up of chromium (8–9%), molybdenum (0.85–1.05%), vanadium, niobium, and carefully controlled amounts of carbon, manganese, and silicon. This unique alloy provides a high tensile strength of about 585 MPa and a yield strength of around 415 MPa, along with excellent creep resistance at elevated temperatures. The blend of chromium and molybdenum boosts oxidation resistance, while vanadium and niobium enhance toughness and structural integrity. These features make the coils perfect for heavy-duty applications in extreme conditions, ensuring efficiency and reliability.
| 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.
Dang Steel based in Da Nang, Vietnam 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. Dang 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 demand exceptional strength and heat resistance. In power plants, they are the go-to choice for superheaters, reheaters, and steam pipelines. The petrochemical sector utilizes them in refinery units, heat exchangers, and high-temperature processing equipment. In boiler manufacturing, they offer durability in tubes and components that face extreme heat and pressure. Moreover, Alloy Steel Grade 91 Coils are essential in thermal power stations, industrial furnaces, and chemical plants. Their ability to resist oxidation, creep, and stress guarantees safe, long-lasting, and cost-effective solutions across challenging industrial environments.
Dang 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 Da Nang, Vietnam.
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