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(RTJ) that are best-in-class. A Ring type joint flange(RTJ) is a machined metallic ring with a deep groove cut into its face. This groove rests a metal ring which gets compressed when the connecting bolts of the flange are tightened. This compression results in a leak-proof, close-fitting seal on the pipe or connection. Stainless Steel Ring type Joint Flanges are classically used in high-pressure and high-temperature services, while Carbon Steel Ring type Joint Flanges are spill-proof.
| Material Category | Available Grades |
|---|---|
| Stainless Steel Flanges | ASTM A182 / A240 F304, F304L, F304H, F316, F316L, F316Ti, F310, F310S, F321, F321H, F317, F347, F347H, F904L. |
| Duplex & Super Duplex Steel Flanges | ASTM/ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61. |
| Carbon Steel Flanges | ASTM/ASME A/SA 105, ASTM/ASME A350, ASTM A181 LF2, ASTM A516 Gr.70, ASTM A36, ASTM A694 F42, F46, F52, F60, F65, F70. |
| Low Temperature Carbon Steel Flanges | ASTM A350 LF2, LF3. |
| Alloy Steel Flanges | ASTM/ASME A/SA 182 & A387 F1, F5, F9, F11, F12, F22, F91. |
| Copper Alloy Flanges | ASTM SB61, SB62, SB151, SB152, UNS C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30), C10100, C10200, C10300, C10800, C12000, C12200. |
| Nickel Alloy Flanges | ASTM SB564, SB160, SB472, SB162, Nickel 200 (UNS N02200), Nickel 201 (UNS N02201), Monel 400 (UNS N04400), Monel K500 (UNS N05500), Inconel 800 (UNS N08800), Inconel 825 (UNS N08825), Inconel 600 (UNS N06600), Inconel 625 (UNS N06625), Inconel 601 (UNS N06601), Hastelloy C276 (UNS N10276), Alloy 20 (UNS N08020). |
Our Ring Type Joint Flanges are used for high-pressure and high-temperature service with metal-to-metal sealing. We maintain focus on standards compliance, dimensional accuracy, and material traceability to support project and replacement requirements.
Industries Served: oil & gas, petrochemical, refineries, power generation, EPC projects, marine, water treatment, and general engineering.
Supply Regions: India, GCC/Gulf markets, and global export projects with commercial support for manufacturer, supplier, stockist, and exporter requirements.
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Certified stainless steel billets are selected according to ASTM, ASME, and EN standards.
Billets are heated and forged into the required flange shape for maximum strength.
Precision machining creates the bore, facing, bolt holes, and required dimensions.
Stress relieving and solution annealing are performed whenever required.
PMI, dimensional inspection, hydrostatic testing, and NDT ensure product quality.
Flanges are cleaned, pickled, passivated, and finished as per customer requirements.
Each flange receives grade, size, heat number, and standard identification markings.
Products are packed securely with flange protectors, wooden pallets, and export-ready crates.
How does a Ring Type Joint (RTJ) Flange seal differently than a Raised Face Flange?
RTJ Flanges use a soft metal gasket, such as an oval or octagonal ring, that is compressed into a precision-machined groove on the flange face when the bolts are tightened. This creates a highly reliable metal-to-metal seal that is designed for high-pressure and high-temperature service, unlike Raised Face Flanges that rely on compressible non-metallic or semi-metallic gaskets.
What is the purpose of a Ring Type Joint (RTJ) Flange?
An RTJ Flange is designed with a precision-machined groove that accommodates a metallic Ring Joint Gasket. As the bolts are tightened, the gasket deforms into the groove to create a leak-resistant seal, making RTJ Flanges suitable for demanding oil and gas, petrochemical, and high-pressure process applications.
What types of Ring Joint Gaskets can be used with your RTJ Flanges?
Our ASME B16.5 Ring Type Joint Flanges are machined to accommodate standard R-Type (Oval and Octagonal), RX-Type, and BX-Type metallic ring joint gaskets, ensuring secure sealing performance in critical industrial piping systems.