Thabiso Steel is a well-respected manufacturer and supplier located in Cape Town, South Africa, focusing on top-notch Alloy Steel F911 Bars that are built for tough industrial tasks. With a reputation for precision engineering and strict quality control, Thabiso Steel ensures that their bars meet international standards, delivering exceptional strength, toughness, and resistance to both corrosion and high temperatures. These Alloy Steel F911 Bars are perfect for sectors like power generation, petrochemical, and oil and gas, where reliability and durability are absolutely vital. Thabiso Steel is committed to providing bars that consistently perform well, have a long service life, and maintain optimal efficiency even in challenging operational settings.
The Alloy Steel F911 Bars are mainly made up of chromium and molybdenum, along with carefully controlled amounts of carbon, manganese, and silicon. This specific chemical makeup boosts their mechanical strength, hardness, and resistance to oxidation and corrosion at high temperatures. The bars boast a tensile strength ranging from about 415 to 655 MPa and a yield strength of around 205 MPa. They also excel in ductility, toughness, and creep resistance, making them ideal for high-temperature and high-pressure applications where durability and reliability are key.
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 use in industries that need materials capable of withstanding extreme temperature and pressure conditions. They’re commonly used in the production of boilers, heat exchangers, superheaters, pressure vessels, and turbine components. Additionally, these bars are essential in petrochemical plants, refineries, and power generation facilities, where mechanical strength and thermal stability are crucial. Their outstanding resistance to wear, oxidation, and thermal fatigue guarantees long-lasting performance. Alloy Steel F911 Bars offer safe, efficient, and reliable solutions for critical industrial applications.
ThabisoSteel 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 Cape Town, South Africa.
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