Yousef Steel stands out as a top manufacturer and supplier of **Alloy Steel F911 Bars** in Riyadh, Saudi Arabia. We pride ourselves on delivering high-quality alloy steel bars that are built for exceptional strength, toughness, and the ability to withstand high temperatures and pressures. Our F911 bars are crafted to meet international standards and are commonly utilized in industries like power generation, oil and gas, petrochemicals, and heavy engineering, where durability and mechanical reliability are non-negotiable. At Yousef Steel, we emphasize precision manufacturing, rigorous quality control, and strict adherence to global specifications, ensuring that our Alloy Steel F911 Bars perform excellently in even the most demanding applications.
These bars are made from a blend of carbon, chromium, molybdenum, vanadium, and niobium, which gives them remarkable tensile and yield strength, hardness, and resistance to creep at elevated temperatures. The alloying elements also boost their resistance to corrosion and oxidation, making them ideal for long-term use in harsh working conditions. They are designed for excellent machinability, weldability, and durability, and come in various sizes, diameters, and finishes to cater to specific project requirements.
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 applications in **turbine components, boiler parts, heat exchangers, high-pressure piping systems, petrochemical equipment, and heavy industrial machinery**, where outstanding mechanical properties and thermal stress resistance are crucial. They are also essential in chemical plants and power stations, ensuring a long service life and dependable operation in extreme environments. With their unique combination of strength, toughness, and compliance with international standards, Alloy Steel F911 Bars are the go-to choice for industries that demand durable and high-performance alloy steel components.
Yousef 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 Riyadh, Saudi Arabia.
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