Andre Stainless is a reliable manufacturer and supplier of stainless steel RTJ (Ring Type Joint) flanges based in Pulau Ujong, Singapore. They specialize in delivering top-notch flanges designed for high-pressure, high-temperature, and critical sealing applications. These flanges are crafted in line with international standards like ASME B16.5, API 6A, and EN specifications, and come in various stainless steel grades such as 304, 316, 321, 347, and duplex/super duplex alloys. With a focus on precision machining, corrosion-resistant finishes, and strict dimensional tolerances, Andre Stainless ensures that their RTJ flanges meet the demands of industries like oil & gas, petrochemicals, offshore, and power generation.
The stainless steel RTJ flanges are made from corrosion-resistant alloys that typically contain 16–26% chromium and 8–22% nickel, with some grades including molybdenum, nitrogen, or copper. These flanges boast impressive tensile strength (usually between 500–750 MPa), excellent fatigue resistance, and outstanding sealing performance, even under cyclic loading and high pressures. The RTJ design features a metal ring gasket that fits snugly into a machined groove, providing a leak-proof seal, even in the most extreme operating conditions.
| Size | 1/2″ to 48″ |
| Standards | MSS SP44, ASA, ANSI B16.47 Series A & B, ANSI B16.5, API-605, AWWA, Custom Drawings. |
| Pressure Ratings | PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Pressure class | 150#, 300#, 600#, 1500# |
| Dimensions | BS3293, Table D, E, F, & H, ANSI, PN6, 10, 16, 25, 64 BS10, BS4504, MSS- SP-44, DIN Standards |
| Flange Face Type Manufacturer | Ring Type Joint (RTJ) |
| Coating/Surface Treatment | Oil Black Paint, Yellow Transparent, Anti-rust Paint, Zinc Plated, Cold and Hot Dip Galvanized. |
| Test | Hydrostatic testing machine, X-ray detector, Direct-reading Spectrograph, UI trasonic flaw detector, Magnetic particle detector |
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At Andre Stainless, the quality of our Stainless Steel RTJ Flanges undergoes rigorous testing procedures. Like hardness tests, chemical analyzing, PMI, flattening, micro/macro, pitting resistance, flaring, and IGC testing. Andre Stainless provides its clients with essential documentation regarding commercial invoices, packing lists, certificates of origin, and guarantee letters, as well as Third-Party Inspection Certificates, which promise reliability and client satisfaction with trustworthy performance. Thus, Andre Stainless has made a perfect partner for Stainless Steel RTJ Flanges, which provide high performance.
Yes, Stainless Steel RTJ Flanges are ideal for potable water applications due to their high corrosion resistance, non-toxic properties, and durability, ensuring safe water quality and reliable connections in residential and industrial systems.
Yes, Stainless Steel RTJ Flanges can be used for underground applications due to their exceptional corrosion resistance, strength, and durability, ensuring reliable performance and longevity even in harsh and moisture-prone environments.
Common grades of stainless steel used in RTJ flange manufacturing include 304/304L and 316/316L for corrosion resistance, 321 for high-temperature strength, and duplex grades like 2205 for superior durability in demanding environments.
Yes, Stainless Steel RTJ Flanges are highly recyclable. Stainless steel is a sustainable material, and these flanges can be recycled without losing their quality, making them an environmentally friendly option for various industries.
Often found in pipeline systems that handle hazardous, flammable, or high-pressure media, the stainless steel RTJ flanges from Andre Stainless are perfect for subsea pipelines, chemical reactors, high-temperature steam systems, and drilling platforms. Their robust metal-to-metal sealing capability guarantees long-term integrity in critical service environments. Andre Stainless offers a diverse selection of RTJ flange sizes, pressure classes (ranging from 150 to 2500), and ring groove styles (R, RX, BX), along with custom manufacturing options to cater to specific project needs throughout Pulau Ujong and Singapore.
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