Hemi Metals, located in Hamilton, New Zealand, is a reputable manufacturer and supplier of high-performance Alloy Steel F91 Bars and Rods, designed for demanding high-temperature and high-pressure industrial applications. F91 is a specialized chromium-molybdenum-vanadium alloy steel, crafted for exceptional creep resistance and strength at elevated temperatures. With a focus on precise dimensions and advanced heat treatment techniques, these bars and rods provide remarkable mechanical reliability and a long service life. Hemi Metals caters to industries such as power generation, petrochemicals, refineries, and heavy engineering, where top-notch thermal and mechanical performance is crucial.
Alloy Steel F91 is composed of about 8–9.5% chromium, 0.85–1.05% molybdenum, and carefully controlled levels of vanadium, niobium, and nitrogen, all contributing to its enhanced high-temperature strength. This unique blend ensures excellent creep resistance, oxidation resistance, and outstanding structural stability even under extreme conditions. Typically, F91 bars and rods boast a tensile strength ranging from 585 to 760 MPa and a yield strength close to 415 MPa, along with commendable toughness and fatigue resistance. The alloy excels in prolonged use at high temperatures and under significant internal pressures.
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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 | Si | Mo | P | Cr |
| ASTM A182 F91 | 0.08 – 0.15 | 0.30 – 0.60 | 0.20 – 0.50 | 0.85 – 1.05 | 0.020 | 8.0 – 9.5 |
| Tensile Strength (ksi) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (ksi) min |
| 570 | 23 | 295 |
| STANDARD | WERKSTOFF NR. | UNS |
| ASTM A182 F91 | 1.4903 | – |
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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 and Rods are primarily used in high-temperature and high-pressure applications such as power plants, pressure vessels, and heat exchangers due to their strength and resistance to oxidation.
Alloy Steel F91 offers excellent tensile strength, high-temperature resistance, and good oxidation and corrosion resistance, making it ideal for demanding industrial applications.
Alloy Steel F91 Bars and Rods find extensive application in high-temperature and high-pressure settings where durability and creep resistance are vital. They are frequently utilized in boiler components, superheaters, headers, steam piping systems, turbine parts, and pressure vessel supports. In power plants and petrochemical refineries, F91 bars and rods serve as structural supports, fasteners, valve components, and high-stress mechanical assemblies. They are also employed in heat recovery systems and thermal processing equipment. Thanks to their excellent oxidation resistance, thermal stability, and mechanical reliability, they ensure safe and long-lasting performance.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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