Super Duplex Steel Valves
Super Duplex Steel Valves
High-quality Super Duplex Steel Valves engineered for reliable flow isolation, regulation and control in industrial piping systems.
- Ball Valves
- Gate Valves
- Globe Valves
- Check Valves
- Needle Valves
- Butterfly Valves
Super Duplex Steel Valves Manufacturer in India
Sawariya Metal Industries is a manufacturer, supplier, stockist and exporter of Super Duplex Steel Valves in different sizes, grades, specifications and finishes for industrial and engineering applications.
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.
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 Valves 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 Valves
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 Valves Specifications
| Parameter | Specification |
|---|---|
| Dimensions | ASTM, ASME API |
| Specifications | API 600/BS1414, API 598/BS EN 12266-1, ASME B 16.10, ASME B 16.5, ASME B 16.25, ASME B 16.34 |
| Grade | UNS S32750, S32760, S32950 |
| Size | 1/8" to 16" |
| Pressure Rating | 150#,300#,600#,800#,1500# |
| End Connection | Screwed [NPT], Socket Weld, Flanged End, Screwed Parallel, Screwed Taper |
Equivalent Grades of Super Duplex Steel Valves
| STANDARD | WERKSTOFF NR | UNS |
|---|---|---|
| Super Duplex S2507 | 1.4410 | S32750 / S32760 / S32950 |
Chemical Composition of Super Duplex Steel Valves
| Element | Min | Max |
|---|---|---|
| Carbon | 0 | 0.03 |
| Manganese | 0 | 2 |
| Phosphorus | 0 | 0.03 |
| Sulphur | 0 | 0.02 |
| Silicon | 0 | 1 |
| Copper | 0 | 0 |
| Nickel | 4.5 | 6.5 |
| Chromium | 21 | 23 |
| Molybdenum | 2.5 | 3.5 |
| Nitrogen | 0.08 | 0.2 |
Mechanical Properties of Super Duplex Steel Valves
| Element | Super Duplex S2507 |
|---|---|
| Yield 0.2 % ( Mpa/Nmm 2 ), Min | 550 |
| Tensile ( Mpa/Nmm2), Min | 750-895 |
| *Elongation (% in 50MM ), Min | 25 |
| Reduction Area(%), Min | 45 |
| Hardness ( BHN ), Max | – |
Types of Super Duplex Steel Valves
Ball Valves
Quarter-turn valves for quick and tight shut-off.
Gate & Globe Valves
Isolation and throttling valves for process lines.
Check Valves
Non-return valves to prevent reverse flow.
Needle & Butterfly Valves
Fine flow control and large-bore regulation.
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 Valves can be supplied with inspection, testing and documentation according to the applicable specification and customer purchase requirements.
- Dimensional inspection
- Visual inspection
- Material grade verification
- Shell and seat pressure testing
- Valve operation testing
- Positive Material Identification (PMI) as applicable
- Material Test Certificate (MTC)
- Third-party inspection support
Why Choose Our Super Duplex Steel Valves?
Tight Shut-Off
Reliable sealing for process isolation.
Multiple Valve Types
Ball, gate, globe, check, needle and more.
Pressure Classes
Available from Class 150 to 2500.
Material Options
Matched to process media and temperature.
Super Duplex Steel Valves Manufacturer, Supplier & Exporter
Sawariya Metal Industries supplies Super Duplex Steel Valves 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 Valves.
Related Super Duplex Steel Products Products
Super Duplex Steel Fasteners
Super Duplex Steel Fasteners are mechanical joining components such as bolts, nuts, studs, screws and washers used to assemble flanges, structures, machinery and equipment.
Super Duplex Steel Instrumentation Tubing & Fittings
Super Duplex Steel Instrumentation Tubing & Fittings include seamless and welded instrumentation tubes together with compression fittings, connectors and valves used to carry process fluids and signals safely to instruments.
Super Duplex Steel Ferrule Fittings
Super Duplex Steel Ferrule Fittings are compression-type tube fittings that use front and back ferrules to grip the tube and create a reliable, leak-tight seal without welding.
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.