Liam Steel is a reputable manufacturer and supplier located in Manila, Philippines, with a focus on high-quality Alloy Steel F911 Bars. The company is well-regarded for its cutting-edge manufacturing processes and dedication to meeting global quality standards, ensuring that their products can handle the rigorous demands of high-pressure and high-temperature industrial applications. With an emphasis on durability, precision, and performance, Liam Steel caters to key industries such as oil and gas, petrochemical, power generation, and heavy engineering. Thanks to their commitment to innovation, timely deliveries, and outstanding customer support, they have built a solid reputation for reliability and excellence both locally and internationally.
Alloy Steel F911 Bars are primarily made up of chromium, molybdenum, and vanadium, with carefully balanced amounts of carbon, manganese, silicon, and nickel to boost their mechanical and thermal properties. This alloy is engineered to provide impressive tensile strength ranging from 620 to 750 MPa and a yield strength of approximately 440 to 585 MPa. The F911 grade is known for its excellent creep strength, oxidation resistance, and dimensional stability even at high temperatures. Heat treatment through quenching and tempering enhances toughness, hardness, and fatigue resistance, making it perfect for long-term use in harsh 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.
These Alloy Steel F911 Bars find extensive applications in industries that require exceptional strength and heat resistance under extreme conditions. They are commonly used in constructing boilers, turbines, pressure vessels, heat exchangers, and piping systems in power plants and refineries. Their ability to maintain mechanical integrity at elevated temperatures makes them ideal for steam and gas turbine components. Additionally, these bars are essential in manufacturing shafts, valves, and fasteners, where outstanding durability, creep resistance, and dimensional stability are crucial for safe and reliable industrial operations.
Liam 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 Manila, Philippines.
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