Faizan Flanges, based in Doha, Qatar, is a renowned manufacturer and supplier of high-quality flanges for various industrial applications. Our Alloy Steel F91 Flanges are designed for high-temperature and high-pressure environments, offering exceptional strength, durability, and resistance to corrosion. Ideal for use in power generation, petrochemical, and oil & gas industries, these flanges ensure reliable, leak-resistant connections in critical systems. With a commitment to quality and precision, Faizan Flanges delivers products that meet the highest industry standards for performance and safety.
Alloy Steel F91 Flanges are made from a high-strength chromium-molybdenum alloy, typically containing 9% chromium and 1% molybdenum. This composition enhances their resistance to oxidation, creep, and high-temperature corrosion. Mechanically, F91 flanges offer excellent tensile strength (around 620 MPa) and yield strength (approximately 415 MPa), making them ideal for demanding applications. The advantages of F91 flanges include superior performance under extreme temperatures, enhanced fatigue resistance, and long service life in high-pressure environments. They are widely used in power generation, petrochemical, and oil & gas industries for reliable, durable connections.
| 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 % |
Faizan Flanges, a leading supplier in Doha, Qatar, 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.
Alloy Steel F91 Flanges are widely used in industries that require high-temperature and high-pressure resistance. These flanges are essential in power generation, petrochemical, and oil & gas sectors, where they connect pipes, valves, and other equipment in critical systems. F91 flanges are commonly found in steam lines, boilers, pressure vessels, and heat exchangers, where reliability and performance under extreme conditions are crucial. Their excellent strength, corrosion resistance, and ability to withstand elevated temperatures make them ideal for securing leak-resistant, long-lasting connections in demanding industrial applications.
Yes, we offer custom sizes for Alloy Steel F91 Flanges to meet specific project needs. Our team at Faizan Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@faizanflanges.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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