Thabiso Steel, located in Cape Town, South Africa, has made a name for itself as a leading manufacturer and supplier of top-notch Alloy Steel F91 Bars. These bars are celebrated for their remarkable strength, durability, and ability to withstand high temperatures and corrosion. They’re crafted to meet the rigorous demands of industries like power generation, petrochemicals, and engineering. Thabiso Steel prides itself on precision manufacturing and strict adherence to international standards, offering Alloy Steel F91 Bars in a variety of sizes and finishes to cater to a wide range of industrial needs. Their dedication to quality, innovation, and customer satisfaction has solidified their reputation as a trusted player in the South African steel market.
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, EN 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 |
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| 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, vanadium, carbon, and trace amounts of manganese, silicon, and nickel. This special alloy mix provides outstanding mechanical properties, such as high tensile strength, excellent creep resistance, and remarkable oxidation resistance at elevated temperatures. The bars are known for their exceptional hardness, toughness, and stability under pressure, making them perfect for high-stress, high-temperature environments where reliability and performance are crucial.
These Alloy Steel F91 Bars find extensive use in power plants, refineries, and chemical processing industries, thanks to their strength and temperature resilience. They’re ideal for crafting boiler components, heat exchangers, pressure vessels, and piping systems that endure extreme thermal and mechanical stress. Moreover, these bars are utilized in turbine parts, steam lines, and superheater tubes, where long-lasting performance and corrosion resistance are essential. With their superior mechanical and thermal properties, Alloy Steel F91 Bars are vital for critical industrial and engineering applications around the globe.
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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