Operating from the industrial heart of Safat, Kuwait, Sayed Steel has built a reputation for reliability and precision in the supply of high-grade materials. We are proud to be your trusted source for Alloy Steel F911 Bars, a product engineered for demanding environments. Our commitment is to provide not just a product, but a solution, backed by deep technical knowledge and a customer-first approach that ensures you receive the exact specification required for your critical projects, delivered with the efficiency our partners expect.
The strength of Alloy Steel F911 Bars lies in their sophisticated chemical makeup, which includes chromium, molybdenum, and vanadium. This specific composition gives the steel its signature ability to maintain exceptional strength and resist creep deformation even when subjected to intensely high temperatures over long periods. It undergoes precise heat treatment to achieve these robust mechanical properties, resulting in a material that offers outstanding toughness and durability, making it a dependable choice where failure is not an option.
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 will typically find Alloy Steel F911 Bars playing a critical role in power generation, particularly in the construction of high-efficiency power plants. They are essential for components like superheater and reheater tubes, headers, and main steam lines that must withstand extreme pressure and heat. Beyond energy, these bars are also specified for high-temperature piping systems and pressure vessels in petrochemical and other heavy industries, where their reliable performance under stress helps ensure both operational safety and long-term structural integrity.
Sayed 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 Safat, Kuwait.
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