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Nizar Sheetsandplates is a trusted manufacturer and supplier located in Amman, Jordan, specializing in high-performance alloy steel products designed for demanding service conditions. They provide ASTM A182 F91 Circles, crafted from a cutting-edge chromium–molybdenum–vanadium alloy steel, perfect for high-temperature and high-pressure applications. These circles are produced with meticulous metallurgical control, ensuring precise dimensions and top-notch surface quality, making them ideal for further machining into forged components. Nizar Sheetsandplates is committed to meeting ASTM standards and delivering consistent quality for even the most challenging industrial needs.
ASTM A182 F91 is a 9Cr–1Mo–V–Nb alloy steel that contains around 8–9.5% chromium and about 0.85–1.05% molybdenum, along with vanadium, niobium, and nitrogen. This unique composition grants it impressive tensile and yield strength, outstanding creep resistance, and excellent oxidation resistance at high temperatures. Delivered in a normalized and tempered state, F91 circles showcase a fine martensitic structure, good toughness, and dependable performance under extended thermal and mechanical stress.
Specifications ASTM A182 / ASME SA182
Standard ASTM, ASME and API
Range 4 mm to 350 mm dia
Length 1000 mm Long To 6000 mm Long
Finish Bright, Polish & Black
Condition Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished
Form Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.
Grade Alloy Steel ASTM A182 F91 Round Bars DIN (1.4903) )
| Grade | C | Cr | Si | S | Mn | P | Mo |
| ASTM A182 F91 | 0.08 – 0.15 | 8.0 – 9.5 | 0.20 – 0.50 | 0.010 max | 0.30 – 0.60 | 0.020 | 0.85 – 1.05 |
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 415 | 585 | 20 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Nizar Sheets and Plates based in Amman, Jordan, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.
ASTM A182 F91 Circles offer several key advantages, including exceptional resistance to high temperatures, oxidation, and corrosion, making them suitable for extreme environments. Their high tensile and yield strength ensure durability and longevity in demanding applications. The addition of chromium and molybdenum provides excellent creep resistance, allowing the material to maintain structural integrity even at elevated temperatures. These circles are ideal for power plants, petrochemical industries, and heavy machinery, offering superior performance and reliability in high-stress environments. Their ability to withstand thermal fatigue and pressure enhances operational efficiency and safety.
Yes, we offer custom sizes for ASTM A182 F91 Circle to meet specific project needs. Our team at Nizar Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.
| STANDARD | UNS | WNR. |
| Alloy Steel ASTM A182 F91 | – | 1.4903 |
ASTM A182 F91 circles are extensively utilized in the production of forged components for high-temperature and high-pressure environments. Common applications include flanges, valve bodies, fittings, discs, and pressure-retaining parts found in power plants, refineries, and petrochemical industries. They are also employed in boilers, steam pipelines, superheaters, and turbine systems. Thanks to their remarkable creep strength and long-term thermal stability, F91 circles are the go-to choice for critical components that must perform reliably under extreme pressure and temperature conditions, where safety and durability are paramount.
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