Ismail Flanges is a well-known manufacturer and supplier based in Jakarta, Indonesia, specializing in high-performance Ring Type Joint (RTJ) Flanges. These flanges are crafted to meet rigorous international standards, ensuring leak-proof and secure connections even in high-pressure and high-temperature settings. Renowned for their precision engineering and top-notch quality, Ismail Flanges’ RTJ flanges find their way into critical applications across the oil & gas, petrochemical, offshore, and power generation sectors. With a strong focus on quality, timely delivery, and customer satisfaction, the company caters to clients throughout Indonesia and exports to global markets, establishing itself as a reliable name in the flange manufacturing industry.
At Ismail Flanges, Ring Type Joint (RTJ) Flanges are made from high-grade materials like carbon steel, stainless steel (AISI 304/316), and alloy steel to meet various operational requirements. The chemical makeup ensures exceptional strength, ductility, and resistance to corrosion. Mechanical properties include tensile strength ranging from 485–620 MPa, a minimum yield strength of 250 MPa, and high hardness to endure extreme conditions. Designed to work seamlessly with RTJ gaskets, these flanges boast a pressure rating of up to Class 2500 and deliver outstanding sealing performance for high-pressure pipelines, ensuring safety and longevity.
| Specifications | ASTM A105 / ASME SA105, A105N |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size | 1/2″ to 48″ |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flanges Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Elements | Composition, % |
| Carbon [C] | ≤0.35 |
| Manganese [Mn] | 0.60-1.05 |
| Phosphorus [P] | ≤0.35 |
| Sulfur [S] | ≤0.40 |
| Silicon [Si] | 0.10-0.35 |
| Copper [Cu] | ≤0.40 |
| Nickel [Ni] | ≤0.40 |
| Chromium [Cr] | ≤0.30 |
| Tensile Strength min. | Yield Strength min. | Elongation min. | Reduction of Area, min. | Hardness | ||
|---|---|---|---|---|---|---|
| MPa | ksi | MPa | ksi | % | % | HBW |
| 485 | 70 | 250 | 36 | 22 | 30 | 137-187 |
Ismail Flanges, a leading supplier in Indonesia, Jakarta, offers an extensive selection of Carbon Steel 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.
Ismail Flanges’ Ring Type Joint (RTJ) Flanges are perfect for high-pressure, high-temperature scenarios where reliable sealing is a must. They are commonly utilized in oil & gas refineries, offshore drilling rigs, petrochemical facilities, and power plants. The RTJ design features a metallic ring gasket that fits snugly into the machined groove of the flange face, creating a metal-to-metal seal that effectively prevents leakage, even under intense pressure. These flanges are the go-to choice for critical systems like subsea pipelines, hydrocarbon processing units, and high-pressure vessel connections where reliability is key.
Yes, we offer custom sizes for Carbon Steel 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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