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Strategically located in Manila, Philippines, Diaz Sheetsandplates is a trusted partner for industrial and energy projects requiring high-performance materials. We specialize in supplying premium ASTM A182 F91 Circles, a critical forged steel product known for its exceptional strength under extreme conditions. Our commitment is to provide not just a product, but a reliable solution backed by deep technical knowledge and a dedication to meeting the rigorous demands of our clients, ensuring the integrity and longevity of their most challenging applications.
The strength of ASTM A182 F91 lies in its carefully balanced composition, primarily chromium and molybdenum for heat resistance, with vanadium and niobium for stability. This alloy is heat-treated to achieve outstanding mechanical properties, including high tensile and yield strength, which allow it to maintain its integrity even when exposed to intense pressure and temperatures well above 1000°F. This combination makes it remarkably resistant to creep, ensuring long-term performance where ordinary steels would fail.
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.
Diaz Sheets and Plates based in Manila, Philippines, 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 Diaz 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 |
This high-grade material is essential for critical components in demanding environments. You will find ASTM A182 F91 Circles expertly machined into vital parts like flanges, valves, and fittings within power generation plants, especially in supercritical and ultra-supercritical boilers and steam lines. Its performance is also crucial in the petrochemical industry for refinery piping and pressure vessel systems, where its ability to withstand severe thermal and pressure stresses ensures operational safety, efficiency, and reliability for years to come.
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