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Daksh Sheets and Plates is a well-respected manufacturer and supplier based in Delhi, India, specializing in ASTM A182 F91 Circles. We provide top-notch alloy steel products designed for high-temperature and high-pressure applications. The ASTM A182 F91 is a creep-resistant, ferritic alloy steel enriched with chromium and molybdenum, making it perfect for industries like power generation and petrochemicals. Our precisely machined F91 circles come in various sizes, ready to be used in essential components such as flanges, rings, and forged pressure parts. With a strong commitment to quality and compliance, Daksh is your go-to source for high-performance forged alloy steel materials.
ASTM A182 F91 is a modified 9Cr-1Mo-V steel alloy that consists of approximately 8.0–9.5% chromium, 0.85–1.05% molybdenum, 0.18% vanadium, 0.08–0.12% carbon, along with trace amounts of manganese, silicon, nitrogen, phosphorus, and sulfur. It boasts a minimum yield strength of 415 MPa and a tensile strength ranging from 585 to 760 MPa, offering excellent creep strength and oxidation resistance at high temperatures. F91 is specifically engineered for high-temperature, high-pressure settings and undergoes processes like normalizing, tempering, and post-weld heat treatment to ensure stable mechanical performance. It retains its strength and dimensional stability even in extreme conditions for extended service life.
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.
Daksh Sheets and Plates based in Hyderabad , India, 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 Daksh Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@dakshsheetsandplates.co.in
| STANDARD | UNS | WNR. |
| Alloy Steel ASTM A182 F91 | – | 1.4903 |
ASTM A182 F91 Circles find extensive applications in supercritical and ultra-supercritical power plants, refineries, boiler systems, and high-temperature pressure vessels. They are perfect for crafting flanges, valve components, nozzles, rings, and custom-forged parts that endure prolonged exposure to high temperatures and pressures. Thanks to F91’s superior creep resistance, thermal fatigue strength, and oxidation resistance, these circles are essential for ensuring reliability and performance in demanding environments
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