Harsh Metalloys is a trusted manufacturer and supplier of Stainless Steel RTJ (Ring Type Joint) Flanges in Mumbai, India, offering precision-engineered solutions for high-pressure and high-temperature applications. RTJ flanges are designed to create a metal-to-metal seal using a specially machined groove and a metal ring gasket, ensuring leak-proof connections in critical environments. Manufactured in compliance with international standards like ASME B16.5 and ANSI, these flanges are available in stainless steel grades such as 304, 304L, 316, 316L, and more. Harsh Metalloys guarantees top-quality flanges with superior strength, corrosion resistance, and exceptional dimensional accuracy.
Stainless Steel RTJ Flanges are composed of high-grade materials like 304 or 316 stainless steel, which contain 18–20% chromium, 8–14% nickel, and optional additions like molybdenum for enhanced corrosion resistance. These flanges exhibit excellent mechanical properties with tensile strength ranging from 515 to 620 MPa and yield strength from 205 to 310 MPa. They are especially effective in resisting chloride-induced corrosion and high-stress environments. Harsh Metalloys ensures each RTJ flange is precisely machined and tested for tight tolerances, ensuring excellent sealing performance in extreme pressure and temperature 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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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.
Stainless Steel RTJ Flanges are extensively used in the oil & gas, petrochemical, refinery, offshore drilling, and power generation industries. Their ability to maintain a reliable, high-integrity seal under extreme pressure and temperature conditions makes them ideal for pipelines, heat exchangers, reactors, and pressure vessels. These flanges are especially preferred in applications where leakage is not an option. Harsh Metalloys supplies RTJ flanges in various sizes, pressure ratings (Class 150 to Class 2500), and groove designs to suit industry-specific requirements, ensuring dependable performance and long service life in demanding operational environments.
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