Aiman Metals is a reliable manufacturer and supplier of Alloy Steel F91 Bars/Rods in Kuala Lumpur, Malaysia. F91 is a modified 9Cr-1Mo alloy designed for high-temperature use and is widely applied in the power generation and petrochemical industries. Our bars and rods meet international standards like ASTM A182 and offer great mechanical strength and resistance to thermal fatigue. Aiman Metals ensures precision manufacturing, thorough testing, and custom solutions tailored to client needs for critical industrial applications.
F91 Bars/Rods contain chromium (8–9.5%), molybdenum (0.85–1.05%), vanadium, niobium, and nitrogen. These elements boost high-temperature strength, oxidation resistance, and creep performance. With a tensile strength of 585–760 MPa and excellent impact resistance, F91 is perfect for long-term use in harsh conditions. It retains its mechanical properties under stress and high temperatures. The steel can be normalized and tempered to enhance toughness and has good weldability for industrial fabrication.
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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/Rods are commonly used in boiler tubes, heat exchangers, headers, superheaters, and steam piping systems. Their excellent creep strength and resistance to thermal fatigue make them suitable for ultra-supercritical and subcritical power plants. F91 is also utilized in refinery operations and petrochemical units dealing with high-pressure steam and corrosive fluids. These bars and rods are trusted for parts demanding long-lasting durability and thermal stability such as valves, pressure vessels, and turbine casings in extreme service conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aiman Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kuala lumpur, Malaysia
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