Alloy Steel F911 Bars are top-notch chromium-molybdenum-vanadium steel bars designed for situations where you need exceptional strength, creep resistance, and the ability to withstand high temperatures. These bars are crafted through careful forging and rolling techniques, ensuring they have consistent dimensions, a refined grain structure, and a smooth surface finish. They meet international standards, making them perfect for critical uses in power plants, petrochemical industries, and heavy engineering sectors where reliability and long-lasting performance in extreme conditions are a must.
Alloy Steel F911 Bars are performance bars manufactured from an alloy steel tailored for extreme applications. This material is generally made up of chromium, molybdenum, vanadium and other alloys and has good high-temperature, oxidation, and corrosion resistance. F911 alloy steel bars typically contain a composition of approximately 8-9% chromium, 0.5-1.0% molybdenum, and trace amounts of vanadium, tungsten, and carbon. These bars are utilized in applications where strength, durability, and heat resistance are essential, including power generation and industrial equipment.
Diameter : 8mm-3000mm
Length : 3,000-10,000mm
Finish : Bright, Polish & Black
Condition : Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished
Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.
| Grade Symbol | UNS Number | Alloy | Elements | Composition % |
|---|---|---|---|---|
| F911 | K91061 | 9% chromium, 1% molybdenum, 0.2% vanadium plus columbium and nitrogen | Carbon | 0.09 – 0.13 |
| Manganese | 0.30 – 0.60 | |||
| Phosphorus | 0.020 max | |||
| Sulfur | 0.010 max | |||
| Silicon | 0.10 – 0.50 | |||
| Nickel | 0.40 max | |||
| Chromium | 8.5 – 9.5 | |||
| Molybdenum | 0.90 – 1.10 | |||
| Columbium | 0.060 – 0.10 | |||
| Tungsten | 0.90 – 1.10 | |||
| Aluminium | 0.02 max | |||
| Nitrogen | 0.04 – 0.09 | |||
| Vanadium | 0.18–0.25 | |||
| Boron | 0.0003 – 0.006 | |||
| Titanium | 0.01 max | |||
| Zirconium | 0.01 max |
| Property | Value |
|---|---|
| Tensile Strength, min, ksi [MPa] | 90 [620] |
| Yield Strength, min, ksi [MPa] | 64 [440] |
| Elongation in 2 in. [50mm] or 4D, min, % | 18 |
| Reduction or Area, min, % | 40 |
| Brinell Hardness Number, HBW | 187-248 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
You’ll find Alloy Steel F911 Bars commonly used in making boiler components, steam pipelines, pressure vessels, turbine parts, and high-temperature industrial machinery. They’re particularly suited for thermal power plants, petrochemical facilities, and other industries that need materials capable of maintaining strength, toughness, and creep resistance under prolonged exposure to high heat and pressure. Their blend of durability, mechanical performance, and reliability makes them a go-to choice for critical engineering applications.
Chetak 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 Hyderabad, India.
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