Ismail Flanges, Jakarta, Indonesia, is a reliable producer and exporter of Alloy Steel F12 Flanges with high-performance flange solutions for uses in elevated temperatures and pressures. Made of ASTM A182 Grade F12 alloy steel, these flanges have strength, reliability, and thermal and mechanical stress resistance. Ismail Flanges follows international standards such as ASME, ASTM, and ANSI, so every F12 flange ensures uniform quality and performance in power plants, petrochemical plants, oil & gas infrastructure, and heavy-duty piping networks.
Alloy Steel F12 Flanges consist of molybdenum (0.44–0.65%) and chromium (1.0–1.5%), improving their high-temperature strength, oxidation resistance, and resistance to creep. Alloys of this kind normally have tensile strengths ranging from 485 MPa to 655 MPa and undergo heat treatment to enhance the toughness and dimensional stability when under pressure. Their chemical makeup makes them long-lasting in applications exposed to extreme temperatures, varying pressures, and corrosive environments.
| 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 F12 | 0.15 max | 0.3-0.6 | 0.5 | 0.03 | 0.03 | 4-6 | 0.44-0.65 |
| Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 275 | 485 | 20 % |
Ismail Flanges, a leading supplier in Indonesia, Jakarta, offers an extensive selection of Alloy Steel F12 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 commonly applied in boiler equipment, pressure vessels, heat exchangers, high-pressure steam lines, and refineries. Alloy Steel F12 Flanges best fit piping systems where safe, leak-free connections are needed in aggressive and high-temperature service conditions. Their capacity to withstand structural integrity under thermal cycling and mechanical loads makes them the best option for critical operations. With outstanding mechanical performance and long-term resistance to degradation, these flanges provide a consistent and effective solution for challenging industrial processes.
Yes, we offer custom sizes for Alloy Steel F12 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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