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Ratna Exports manufactures and exports Super Duplex Steel S32760 Spectacle Blind Flanges and S32760 Spacer Flanges known for strength, reliability, and long service life. These flanges are used to temporarily block flow in piping systems and are widely accepted across global markets. Made using precise chemical composition—Chromium (24–26%), Molybdenum (3–4%), Nickel (6–8%) with controlled levels of Carbon, Sulphur, and Nitrogen these flanges offer high performance in critical applications.
Built for rough environments, these corrosion resistant flanges show excellent strength under pressure and heat. They can withstand damage from harsh chemicals, seawater and temperature changes. In chemical, marine or offshore settings their resistance to pitting and crevices prolongs service life. To ensure constant quality, all products go through extensive testing, including PMI, Spectro analysis, tensile, elongation and IGC. With a density of 7.8 g/cm³ and a melting point of 1350°C these durable Super Duplex flanges are dependable.
Oil and gas, marine systems, chemical processing and pharmaceutical facilities all make extensive use of these flanges. They work effectively in metering stations, isolation points, and pipelines. We adhere to ASTM A790 and ASME SA790 standards as a reliable flange supplier. To guarantee damage free delivery anywhere in the world each unit is carefully packed using wooden pallets, shrink wrap, or carton boxes. Custom sizes and designs are available for these marine application flanges.
We focus on using top-grade Super Duplex alloy, expert engineering, and strict inspections throughout production. Every flange is tested and certified to match industrial expectations. As a Super Duplex flange supplier in India, we maintain ready stock and quick delivery timelines. Contact us today to get pricing, availability or bulk order support for Super Duplex Steel S32760 Spectacle Blind Flanges in your required size and specification.
| ASME B16.5 Spectacle Blind Flange Size Chart | 1/2″ (15 NB) to 48″ (1200 NB) DN10~DN5000 |
| Spectacle Blind Flange Pressure Rating ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Spectacle Blind Flange Pressure Calculation in DIN | 6 Bar 10 Bar 16 Bar 25 Bar 40 Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| Spectacle Blind Flange Standards | 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 |
| JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| UNI | 6 Bar 10 Bar 16 Bar 25Bar 40Bar |
| EN | 6 Bar 10 Bar 16 Bar 25Bar 40Bar |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanised |
| most typical types of Spectacle Blind Flange | Forged / Threaded / Screwed / Plate |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production technique |
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| Connect Type/ 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 |
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS 15 NB (1/2″) to 200 NB (8″) Equal and Reducing Configurations |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI ultrasonic flaw detector, Magnetic particle detector |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Origin | Indian / West Europe / Japan / USA / Korean |
| Manufacturer of | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE, etc.
Spectacle Blind Flange: -BS Flange, EN Flange, API 6A Flange, ANSI Flange, ASME Flange, DIN Flange, EN1092-1 Flange, UNI Flange, JIS/ KS Flange, BS4504 Flange, GB Flange, AWWA C207 Flange, GOST Flange, PSI Flange
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| Spectacle Blind Flange Uses & application |
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| Export to | Saudi Arabia, Spain, Ireland, Singapore, USA, Dubai, Peru, Brazil, Indonesia, Ukraine, Canada, Thailand, Korea, Iran, India, Egypt, Oman, etc. |
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L
Duplex & Super Spectacle Blind Socket Weld Flanges:
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel Spectacle Blind Flanges:
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Alloy Steel Spectacle Blind Flanges:
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Nickel Alloy Spectacle Blind Flanges:
ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020).
Copper Alloy Steel Spectacle Blind Flanges:
ASTM SB 61, SB62, SB151, SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200.
| spectacle blind flange raised face | spectacle blind flange pn16 |
| spectacle blind flange flat face | ASME B16.48 Spectacle Flange |
| Spacer blind flange | spectacle blind flange ASME B16.48 |
| Blind Spectacle Flange | Spectacle Blind Flange |
| spectacle blind flange 300 | ASME B16.5 Spectacle Blind Flanges |
| Piping Spectacle Blind Flange | ASME B16.48 |
| Spectacle Blind Flange Class 150 | Spectacle Blind Flange Flat Face |
| Spectacle Blind Flange Figure 8 | Spectacle Blind Flange Raised Face |
| Spectacle Blind Flange Rf | Spectacle Blind Flange Rtj |
Please note this is an approx Super Duplex Steel S32760 Spectacle Blind Flanges price in India. For final S32760 Super Duplex Steel Spectacle Blind Flanges price list please mail us.
S32760 is often considered equivalent to Zeron 100. Both offer similar corrosion resistance and mechanical strength.
A spectacle blind is a safety device used between flanges to either block flow or allow flow by rotating its plates.
The dimensions and design of spectacle blind flanges for piping systems are covered by ASME B16.48.
Match the flange size with the pipe’s nominal diameter and pressure rating based on ASME or ANSI standards.
Blind flanges allow for simple maintenance or future system expansion by sealing the end of a pipe or nozzle.
S32760 contains added tungsten and higher pitting resistance; otherwise, both are super duplex grades with similar properties.
It includes Cr 24–26%, Mo 3–4%, Ni 6–8%, N 0.2–0.3%, and low carbon, manganese, and silicon.
S32750 is a super duplex stainless steel known for high strength and excellent corrosion resistance.
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