Ismail Flanges is a trusted Alloy Steel F91 Flanges manufacturer and supplier in Jakarta, Indonesia. It offers high-grade flanges for use in critical applications with durable and high-performance F91 alloy steel flanges that are designed to meet international specifications like ASTM A182. The flanges are designed for use in high-pressure and high-temperature applications and thus can be used in power generation, petrochemicals, refineries, and oil & gas industries. With a quality-oriented approach to reliability and timely delivery, Ismail Flanges makes its Alloy Steel F91 Flanges available with superior mechanical strength and long-term service performance.
Alloy Steel F91 Flanges consist of molybdenum (0.85–1.05%) and chromium (8–9.5%) with vanadium, carbon, and manganese additions for high-temperature strength and oxidation resistance and protection against corrosion. The material shows superior creep strength and thermal stability. They usually possess a minimum tensile strength of 585 MPa and minimum yield strength of 415 MPa, with good hardness and ductility. They are made to sustain thermal cycling along with pressure cycling in harsh service conditions, and hence they are best suited for application in high-temperature systems like steam lines and pressure vessels.
| 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 % |
Ismail Flanges, a leading supplier in Indonesia, Jakarta, 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 extensively utilized in high-pressure steam pipelines, thermal power plants, and petrochemical processing equipment because of their superior strength as well as resistance to heat. They are utilized to join pipes, valves, pumps, and other devices in high-temperature systems, providing a leak-proof, durable joint. Boiler headers, superheater tubes, heat exchangers, and pressure vessels are some of the typical applications. Their resistance to oxidation, sulfide corrosion, and thermal fatigue makes them suitable for environments with heavy heat and mechanical stress, ensuring the reliability and safety of industrial operations.
Yes, we offer custom sizes for Alloy Steel F91 Flanges to meet specific project needs. Our team at Ismail Flanges is committed to providing tailored solutions for all your requirements. For more details, contact us at sales@ismailflanges.id.
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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