Esha Steel stands out as a reliable manufacturer and supplier of Alloy Steel F911 Bars in Kolkata, delivering top-notch, precision-engineered steel products tailored for tough industrial applications. With a strong dedication to quality and compliance with international standards, Esha Steel guarantees that every F911 bar offers remarkable strength, heat resistance, and protection against corrosion. By employing cutting-edge manufacturing techniques and strict quality control measures, the company crafts bars that can endure extreme temperatures, high pressure, and mechanical stress. Catering to sectors like power generation, petrochemicals, oil and gas, and heavy engineering, Esha Steel’s Alloy Steel F911 Bars are celebrated for their reliability, durability, and consistent performance in critical settings.
These Alloy Steel F911 Bars are made from high-grade alloy elements, including chromium, molybdenum, vanadium, and precisely controlled carbon content, which together provide outstanding high-temperature strength, creep resistance, and oxidation resistance. They undergo heat treatment processes like normalization and tempering to boost their tensile strength, hardness, and toughness. Their mechanical properties showcase excellent fatigue resistance, dimensional stability, and durability even under extreme pressure and temperature conditions. This unique blend of chemical composition and mechanical performance makes Alloy Steel F911 Bars perfect for high-stress, high-temperature industrial environments.
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.
Alloy Steel F911 Bars find extensive use in industries that demand exceptional strength and heat resistance. In power plants, they are utilized for superheater tubes, boiler components, and steam piping systems. The petrochemical and oil and gas sectors rely on them for refinery units, high-pressure pipelines, and processing equipment. Additionally, heavy engineering, industrial machinery, and turbine components depend on F911 bars for their durability in extreme operational conditions. Their superior mechanical properties, corrosion resistance, and ability to maintain structural integrity make them a go-to choice for demanding applications.
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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