Super Duplex Steel Flanges
Super Duplex Steel Flanges
Precision-engineered Super Duplex Steel Flanges manufactured for secure, leak-tight pipe connections in pressure piping and process systems.
- Weld Neck
- Slip On
- Blind
- Socket Weld
- Threaded
- Lap Joint
- RTJ
Super Duplex Steel Flanges Manufacturer in India
Sawariya Metal Industries is a manufacturer, supplier, stockist and exporter of Super Duplex Steel Flanges in different sizes, grades, specifications and finishes for industrial and engineering applications.
Super Duplex Steel Flanges are forged or machined components used to connect pipes, valves, pumps and equipment, allowing easy assembly, inspection and maintenance of piping systems.
Super duplex stainless steel combines a balanced austenitic-ferritic microstructure with high chromium, molybdenum and nitrogen content, giving very high strength and excellent resistance to pitting, crevice corrosion and chloride stress corrosion cracking.
Typical applications for Super Duplex Steel Flanges include offshore oil & gas, seawater systems, desalination plants, chemical processing, petrochemical, pulp & paper, marine engineering, heat exchangers and general engineering.
Key Features of Super Duplex Steel Flanges
High Strength
Roughly twice the yield strength of standard austenitic stainless steels.
Chloride Resistance
Excellent resistance to pitting and crevice corrosion in seawater and brine.
Stress Corrosion Resistance
Strong resistance to chloride stress corrosion cracking.
Weight Saving
Higher strength allows lighter designs in suitable applications.
Super Duplex Steel Flanges Specifications
| Parameter | Specification |
|---|---|
| Dimensions | ANSI, ASME, BS, DIN, EN Flanges, etc |
| Specifications | ASTM A182 / ASME SA182 F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
| Grade | UNS S32750, S32760, S32950 |
| Size | 1/8"NB TO 48"NB IN |
| Schedule | 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160, and XXS |
| Class | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
Equivalent Grades of Super Duplex Steel Flanges
| STANDARD | WERKSTOFF NR | UNS |
|---|---|---|
| Super Duplex S2507 | 1.4410 | S32750 / S32760 / S32950 |
Types of Super Duplex Steel Flanges
Weld Neck Flanges
Butt-welded flanges for high-pressure and high-temperature service.
Slip On Flanges
Slip over the pipe for easy alignment and welding.
Blind Flanges
Solid flanges used to close pipe ends and openings.
Socket Weld & Threaded Flanges
Compact connections for smaller bore piping.
Lap Joint Flanges
Used with stub ends for easy alignment.
Spectacle & RTJ Flanges
Positive isolation and high-pressure sealing.
Applications & Industries
- Offshore Oil & Gas
- Seawater Systems
- Desalination Plants
- Chemical Processing
- Petrochemical
- Pulp & Paper
- Marine Engineering
- Heat Exchangers
- Pollution Control
- Subsea Equipment
- Fabrication
- General Engineering
Quality & Inspection
Quality-Focused Manufacturing & Supply
Super Duplex Steel Flanges can be supplied with inspection, testing and documentation according to the applicable specification and customer purchase requirements.
- Dimensional inspection
- Visual and surface inspection
- Material grade verification
- Chemical composition verification
- Mechanical testing as applicable
- Flange face and bolt-hole inspection
- Non-destructive testing as applicable
- Mill Test Certificate (MTC)
- Third-party inspection support
Why Choose Our Super Duplex Steel Flanges?
Multiple Pressure Classes
150# to 2500# and PN ratings.
All Flange Types
Weld neck, slip on, blind, socket weld and more.
Accurate Machining
Precise facing and drilling for leak-tight joints.
Custom Flanges
Manufactured as per drawings on request.
Super Duplex Steel Flanges Manufacturer, Supplier & Exporter
Sawariya Metal Industries supplies Super Duplex Steel Flanges for domestic and international projects in a wide range of sizes, grades and specifications. Products can be supplied in standard and custom dimensions according to drawings and purchase order requirements.
Every order can be supported with Mill Test Certificates, inspection reports, third-party inspection on request and secure export-worthy packaging.
Share your size, grade, quantity and specification requirements with our team to receive a competitive quotation for Super Duplex Steel Flanges.
Related Super Duplex Steel Products Products
Super Duplex Buttweld Pipe Fittings
Super Duplex Buttweld Pipe Fittings are welded pipe fittings that are bevelled and butt-welded to the pipe, creating a continuous, high-strength and leak-resistant connection with smooth internal flow.
Super Duplex Socket weld Fittings
Super Duplex Socket weld Fittings are forged small-bore pipe fittings with socket weld or threaded ends, manufactured to ASME B16.11 for high-pressure piping and instrumentation lines.
Super Duplex Steel Valves
Super Duplex Steel Valves are flow-control devices used to start, stop, regulate or prevent backflow of liquids and gases in process and utility piping.
Technical Note: Technical values should be verified against the applicable ASTM / ASME / EN specification, purchase order requirements and Mill Test Certificate (MTC) for the supplied product.