Esha Steel stands out as a top manufacturer and supplier of Alloy Steel F91 Bars in Kolkata, providing high-performance steel solutions tailored for tough industrial needs. With a strong focus on quality, precision engineering, and compliance with international standards, Esha Steel crafts F91 bars that offer remarkable strength, heat resistance, and protection against corrosion. The company utilizes cutting-edge manufacturing methods and strict quality control measures to guarantee durability, reliability, and consistent performance. Catering to sectors like power generation, petrochemicals, oil and gas, and heavy engineering, Esha Steel has built a solid reputation for delivering Alloy Steel F91 Bars that can handle the most demanding operational challenges.
Alloy Steel F91 Bars are made from a blend of chromium, molybdenum, vanadium, and carefully controlled carbon content, providing exceptional high-temperature strength, creep resistance, and oxidation resistance. These bars undergo heat treatment processes such as normalization and tempering to boost their tensile strength, hardness, and toughness. Their mechanical properties include outstanding fatigue resistance, dimensional stability, and structural integrity even in extreme operating conditions. The combination of top-notch chemical composition and mechanical performance makes Alloy Steel F91 Bars perfect for high-pressure, high-temperature industrial applications.
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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 |
Esha Steel is a top manufacturer and supplier of high-quality Alloy Steel F91 Bars products in Kolkata India. Specializing in steel solutions, we provide a wide range of products, including Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel. Our offerings include Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates. Known for our reliable delivery and superior customer service, we are committed to offering top-tier steel materials that ensure durability and performance across a wide range of industrial applications. We strive to meet the highest standards, making us a trusted partner for all your steel needs.
These bars are widely utilized in industries that demand exceptional heat and pressure resistance. They’re commonly found in power plants for superheater tubes, boiler components, and steam piping systems. The petrochemical and oil and gas sectors rely on them for refinery equipment, high-pressure pipelines, and heat exchangers. Moreover, they are well-suited for turbine components, heavy machinery, and industrial equipment that operate under extreme conditions. Thanks to their superior mechanical properties, durability, and corrosion resistance, Alloy Steel F91 Bars provide reliable performance in critical applications where safety is paramount.
Esha 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 Kolkata India.
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