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Al Shakru Sheets and Plates is a highly regarded manufacturer and supplier of ASTM A182 F91 Circles based in Dubai, UAE . We take great pride in providing premium alloy steel products engineered to endure the demands of high-temperature and high-pressure conditions. Our ASTM A182 F91 Circles are precisely manufactured using advanced technology, guaranteeing exceptional performance, resistance to corrosion, and accurate dimensions. We serve a range of industries, such as power generation, petrochemicals, and refineries, supplying dependable components that comply with international standards. Driven by a firm dedication to quality, we offer durable and effective solutions designed to satisfy the demanding requirements of modern industrial applications.
ASTM A182 F91 Circles consist of chromium (8–9.5%) , molybdenum (0.85–1.05%) , carbon (0.08–0.12%) , manganese (0.30–0.60%) , silicon (0.20–0.50%) , together with small quantities of vanadium, nickel, and niobium . These circles deliver excellent tensile strength (585–760 MPa) , yield strength (minimum 415 MPa) , and outstanding creep resistance under elevated temperatures. The alloy’s well-balanced composition provides high hardness, toughness, and thermal stability, making it ideal for applications involving extreme heat and pressure conditions.
SpecificationsASTM A182 / ASME SA182
StandardASTM, ASME and API
Range4 mm to 350 mm dia
Length1000 mm Long To 6000 mm Long
FinishBright, Polished & Black
ConditionCold Drawn & Polished Cold Drawn, Centreless Ground & Polished
FormRound, 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 supply products accompanied by both mill test certificates and third-party test certificates, guaranteeing the highest standards of quality and compliance.
Al Shakru Sheets and Plates based in Dubai, UAE, is a top supplier and stockist of premium metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all provided with outstanding service and customized to fit our customers specific needs. With an emphasis on delivering exceptional products, we serve a broad spectrum of industries, offering dependable solutions for varied applications. Our extensive stock includes Recognized for our distinctive finishing methods and dedication to quality. We are committed to guaranteeing customer satisfaction through reliable service and first-rate products.
ASTM A182 F91 Circlesprovide numerous important benefits, such as outstanding resistance to elevated temperatures, oxidation, and corrosion, which makes them well-suited for harsh conditions. Their high tensile and yield strength deliver durability and long service life in challenging applications. Adding chromium and molybdenum grants excellent creep resistance, enabling the material to preserve its structural integrity even under high temperatures. These circles work perfectly for power plants, petrochemical industries, and heavy machinery, delivering superior performance and dependability in high-stress settings. Their capacity to endure thermal fatigue and pressure improves operational efficiency and safety.
Yes,we provide custom dimensions for ASTM A182 F91 Circle to fit particular project requirements. Our team at Al Shakru Sheets and Plates is committed to delivering customized solutions for all your needs. For further information, reach out to us at sales@alshakruplates.ae.
| STANDARD | UNS | WNR. |
| Alloy Steel ASTM A182 F91 | – | 1.4903 |
You’ll see ASTM A182 F91 Circles commonly employed across power plants, boilers, steam turbines, and heat exchangers , where they act as critical components capable of withstanding thermal stress and pressure. Within the oil, gas, and petrochemical sectors , they find use in valves, flanges, fittings, and reactor vessels . These circles likewise contribute significantly to high-temperature piping systems, pressure vessels, and industrial machinery , providing outstanding performance even under the harshest conditions. Their distinctive blend of heat resistance, mechanical strength, and corrosion protection renders them essential for energy, refinery, and process engineering applications worldwide.
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