Nestled in the bustling industrial heart of Kinshasa, Yoane Steel has carved a distinct niche as a trusted manufacturer and supplier of specialized steel products. For projects demanding exceptional strength under pressure, we proudly produce and supply Alloy Steel F911 Bars. Our commitment goes beyond mere supply; it’s about providing a reliable foundation for the ambitious infrastructure and energy developments taking root across the Congo and beyond, ensuring every bar meets the precise standards required for critical applications.
These F911 bars are carefully crafted from a sophisticated alloy composition, primarily built around chromium and molybdenum, which gives them a remarkable ability to maintain their integrity in high-stress situations. This specific blend of elements results in outstanding mechanical properties, including superior tensile strength and excellent creep resistance. Essentially, this means the bars can withstand immense pulling forces and resist deforming over time, even when subjected to the sustained, intense heat found in demanding 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.
The unique combination of strength and heat resistance makes Alloy Steel F911 Bars indispensable in several key sectors. You’ll often find them at the core of power generation plants, forming essential components within high-temperature boilers, steam lines, and turbines. They are equally vital in the petrochemical industry for constructing refinery pipelines and heat exchangers that must handle corrosive substances and extreme pressures. Choosing F911 is a decision for longevity and safety, ensuring that critical structures perform reliably for years to come.
Yoane 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 Kinshasa, Congo.
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