Chetak Steel is a well-respected manufacturer and supplier located in Hyderabad, known for providing top-notch Alloy Steel F91 Bars to a variety of industrial sectors. The company prides itself on its commitment to precision manufacturing, consistent quality, and ensuring customer satisfaction. By adhering to rigorous quality control measures and international standards, Chetak Steel guarantees reliable products for critical applications. With state-of-the-art facilities, a skilled workforce, competitive pricing, and efficient logistics, they ensure timely deliveries and foster long-term relationships with clients across the power, oil, gas, and engineering industries, establishing themselves as a trusted source for dependable alloy steel solutions.
Alloy Steel F91 Bars consist mainly of chromium (8-9.5%) and molybdenum (0.85-1.05%), to which vanadium, nickel, and manganese are added for high strength and corrosion resistance. Alloy Steel F91 Bars have very good mechanical properties, such as tensile strength of 585 MPa, yield strength of 415 MPa, and very good toughness even at elevated temperatures.
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type |
Alloy Steel ASTM A182 F91 Round Bars |
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Type |
rod, square bar, Round bar, hexagon bar, flat bar, channel bar, angle bar, threaded bar |
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Standards |
Alloy Steel ASTM A182 F91 , A479, A314, GB4226-84, GB/T1220-2007, JISG4311-91, JIS G4318-98, ENÂ 10095-99, GB4226-84, EN10088-3-2005, JIS G3033-2005, etc |
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Surface |
bright round bar, pickled round bar, black round bar |
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Package Details |
Standard seaworthy package(wooden boxes package,pvc package, or other package) |
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Technique |
Forged/Hot Rolled/Cold Drawn/Peeled |
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Range |
Range – 3.17mm to 350mm dia |
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Diameter |
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Length |
1m-9m or according to the customer’s requirement |
| Grade | C | Mn | P | S | Si | Ni | Ch | Mo | Cb | N |
|---|---|---|---|---|---|---|---|---|---|---|
| F91 | 0.08-0.12 | 0.30-0.60 | 0.020 | 0.010 | 0.20-0.50 | 0.40 | 8.0-9.5 | 0.85-1.05 | 0.06-0.10 | 0.03-0.07 |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| F91 | 585 | 415 | 20 | – | 248 max |
| STANDARD | UNS | WERKSTOFF NR. |
|---|---|---|
| Alloy Steel F91 | K90901 | 1.4903 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
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SHAPE |
POUNDS PER FOOT |
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Round |
D2 x 2.67 |
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Hexagon |
D2 x 2.945 |
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Square |
D2 x 3.4 |
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Flat |
Thickness (in.) x Width (in.) x 3.4 |
Alloy Steel F91 Bars are made from a blend of chromium, molybdenum, and vanadium, specifically designed for high-temperature and high-pressure applications. Their chemical makeup usually includes carbon, about nine percent chromium, along with molybdenum, vanadium, manganese, silicon, and a controlled amount of nitrogen. These bars are known for their impressive tensile and yield strength, outstanding creep resistance, and solid toughness. They maintain their mechanical stability even at elevated temperatures, resist oxidation and fatigue, and can be welded effectively when the right procedures are followed, making them ideal for demanding long-term service conditions.
Alloy Steel F91 Bars find extensive use in industries where strength, durability, and heat resistance are paramount. Common applications include boilers, pressure vessels, steam headers, heat exchangers, and piping systems in both thermal and nuclear power plants. They are also widely utilized in oil and gas refineries, petrochemical plants, and chemical processing industries. Furthermore, F91 bars are perfect for turbine components, valves, and high-pressure fittings, where a long service life, creep resistance, and reliable performance under extreme operating conditions are crucial.
Chetak 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 Hyderabad, India.
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