Quan Flanges and Plates stands out as a top-notch manufacturer and supplier based in Da Nang, Vietnam, focusing on high-quality Alloy Steel F91 Flanges designed for demanding industrial applications. These flanges are crafted using cutting-edge forging and heat-treatment techniques, ensuring they boast exceptional strength, durability, and resistance to both high pressure and corrosion. Engineered for secure and reliable connections, Alloy Steel F91 Flanges excel in challenging piping systems, especially in high-temperature and high-stress environments. Quan Flanges and Plates offers these flanges in a variety of sizes, pressure ratings, and standards, delivering trustworthy solutions for industries like power generation, petrochemical, oil and gas, and chemical processing around the globe.
The composition of Alloy Steel F91 Flanges includes iron, chromium (8–9%), molybdenum (0.85–1.05%), vanadium, niobium, carbon (0.08–0.12%), along with trace amounts of manganese, silicon, and nickel. This unique blend provides remarkable mechanical strength, creep resistance, and the ability to withstand oxidation and corrosion at high temperatures. Their mechanical properties feature a tensile strength of about 585–700 MPa, yield strength ranging from 415–620 MPa, and impressive impact toughness. Alloy Steel F91 Flanges maintain their structural integrity and durability even under extreme pressure and temperature conditions, making them perfect for critical industrial applications that demand long-lasting reliability and performance.
| Specifications | : | ASTM A182 / ASME SA182 |
| Size | : | 1/2″ (15 NB) to 48″ (1200NB) |
| Standards | : | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | : | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grade | C | Mn | Si | P | S | Cr | Mo |
| Alloy Steel F91 | 0.15 max | 0.3-0.6 | 0.5-1.0 | 0.03 | 0.03 | 8-10 | 0.9-1.1 |
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 380 | 585 | 20 % |
Quan Flanges, a leading supplier in Da Nang, Vietnam, offers an extensive selection of Alloy Steel F91 Flanges, including weld neck flanges, slip-on flanges, blind flanges, threaded flanges, and lap joint flanges. Designed for diverse industrial applications, our high-quality inventory and commitment to exceptional service make us a trusted choice for flange products in the region.
These flanges are widely utilized in sectors that require robust, heat-resistant, and corrosion-resistant piping connections. You’ll find them extensively used in power plants, steam lines, boilers, petrochemical facilities, oil and gas refineries, and chemical processing units. They’re also well-suited for high-temperature pipelines, water treatment systems, and marine applications. Alloy Steel F91 Flanges ensure leak-proof, secure connections for valves, pumps, pipelines, and pressure vessels, promoting safe operation and straightforward maintenance. Their sturdy construction guarantees they can handle the toughest conditions with ease.
Yes, we offer custom sizes for Alloy Steel F91 Flanges to meet specific project needs. Our team at Quan Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@quanflanges.com.
We are renowned for delivering products with precise, accurate dimensions. Each product undergoes thorough testing, both destructive and non-destructive, to ensure quality before being shipped to our customers.
Our team is ready to assist you. Contact us for any queries or personalized solutions.
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