Duplex steel flanges are corrosion and strength-based components that are utilised to join pipes, equipment, and valves in demanding environments. Constructed from duplex stainless steel, it has superior strength and durability making it suitable for oil & gas, petrochemicals, and marine industries. Caliper Overseas is one of the reliable Duplex Steel Flanges Manufacturers and Suppliers in India and offers a good range of various types of flanges including Welding Neck, Slip-on, Blind, Socket Weld, Lap Joint, Threaded and Ring Type Joint (RTJ) flanges. Each type is used in piping systems with a particular end use ensuring safety and efficient flow.
Our flanges are made according to international standards such as ASTM A182/ASME SA182, ANSI B16.5, and BS4504. S31803 and S32205, which has great corrosion and high-pressure resistance. Our flanges are made for precision and durability. Duplex steel flanges are a reliable option for sensitive operations. Get in touch with us today for durable, high-quality flange solutions.

| Standard | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Flange Size Chart | 1/2" (15 NB) to 48" (1200NB), DN10~DN5000 |
| Pressure Rating | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| JIS | 16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K |
| Flange Connection / Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove, Flange Pipe. |
| Origin | West Europe / Japan / Indian / USA / Korean |
| Types of Flanges | Threaded / Screwed / Forged / Plate |
| Coating | Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized |
| Test Of Flange | Direct-reading Spectrograph, Ultrasonic flaw detector, Magnetic particle detector, X-ray detector, Hydrostatic testing machine. |
| Production technique Used | Heat treated, Forged and Machined |
| Equipment | Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc. |
| Test Certificates | EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc |
Duplex Steel Flanges in Distillery Plants
Duplex Steel Flanges in Sugar Industries
Duplex Steel Flanges in Process Industries
Duplex Steel Flanges in Power Plants
Duplex Steel Flanges in Refineries
Duplex Steel Flanges in Petrochemical Plants
Your Duplex Steel Flanges
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Duplex Steel Slip On Flanges
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Duplex Steel Blind Flanges
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Duplex Steel Socket weld Flanges
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