UNS S32750 Super Duplex Steel Plate Flanges Manufacturer Stockist Exporter
We are manufacturers, stockist and exporters of UNS S32750 Super Duplex Steel Plate Flanges in Mumbai.
Super Duplex stainless steel, designated as UNS S32750, offers a very favorable combination of high strength and excellent resistance to chloride stress corrosion cracking, pitting, and crevice corrosion. Because of its richly alloyed chemistry — high chromium, molybdenum, and nitrogen — S32750 outperforms standard austenitic or duplex grades in aggressive environments such as seawater, petrochemical brines, chloride-laden process streams, and harsh offshore conditions. When used in flanges, Super Duplex allows for thinner cross-sections while retaining structural strength, making it economical for high-pressure or corrosive service.
Synergy Engineering Solution, acting as a manufacturer, would produce these Super Duplex plate flanges by procuring certified Super Duplex plate material, performing cutting, forging, heat treatment (solution annealing and quenching), precision machining, and finishing to flange standard tolerances. Strict quality controls—including chemical verification, mechanical testing, macro/microstructure examination, and non-destructive evaluation—ensure that each flange meets the stringent requirements for duplex microstructure balance (ferrite + austenite balance) and corrosion performance.
As a stockist, Synergy would maintain an inventory of commonly used sizes, pressure ratings, and face types (raised face, flat face, ring type joint) for Super Duplex plate flanges. This inventory enables shorter lead times and supports clients facing tight project schedules or urgent replacements. As an exporter, Synergy integrates this supply infrastructure with export logistics, documentation (mill test reports, weld procedure qualifications, inspection certificates), and international shipping capability to serve clients in Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, the USA, Canada, Africa, and broader global regions.
Plate flanges in Super Duplex steel are particularly useful in demanding applications and industries such as offshore oil & gas, chemical processing, desalination, petrochemical, pulp & paper, and power plants. They serve in piping systems handling corrosive fluids (chlorides, HCl, H₂S, sour water) where lower-cost stainless steels would suffer rapid degradation. The high strength of S32750 also allows for weight- and thickness-optimized designs: for a given pressure rating, the flange may be thinner or lighter without compromising integrity.
Types Of Flanges manufacturer
Synergy supports customers with advisory services for flange selection (size, pressure class, face type), compatibility with gasket and bolting materials, welding and post-weld treatment recommendations, and inspection support. The company’s ability to supply from stock, handle bespoke orders, and manage global export logistics positions it as a trusted partner for clients in the Middle East, Europe, North America, Africa, and beyond seeking reliable, high-performance Super Duplex plate flanges.
clients in desalination plants, offshore and marine structures, chemical and hydrocarbon processing units, and seawater cooling systems find Monel 400 lapped joint flanges an excellent fit for long-term corrosion protection, maintenance ease, and installation versatility. Synergy supports these users with technical guidance on flange selection, matching with gasket and bolt materials, and supply chain reliability. As a global supplier, Synergy Engineering Solution positions itself not just as a vendor but as a technical partner for clients seeking robust, corrosion-resistant Monel 400 lapped joint flanges with dependable delivery across many continents.
Specifications
| Attribute | Details |
|---|---|
| Material Grade | UNS S32750 (Super Duplex / Alloy 2507 / SAF 2507) |
| Common Standards | ASME B16.5 / B16.47 (flanges), ASTM A182 (for forgings), EN / DIN equivalents (X2CrNiMoN25-7-4 / 1.4410) |
| Form | Plate flanges (manufactured from S32750 plate; can be supplied as raised face, flat face, RTJ) |
| Size Range | Typically DN15 (½") to DN1200 (48") — custom sizes available |
| Pressure Classes | 150#, 300#, 600#, 900#, 1500#, 2500# (to mating standard) |
| Facing Options | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint) |
| Documentation | Material Test Reports (MTR), mill certificates, heat treatment records, NDE / third-party inspection (on request) |
Chemical Composition (typical ranges, wt%)
Note: final supplied values are confirmed on the shipment MTR. Ranges below are industry-typical for Super Duplex 2507 (UNS S32750).
| Element | Typical Range (wt%) |
|---|---|
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 5.0 |
| Nitrogen (N) | 0.24 – 0.35 |
| Carbon (C) | ≤ 0.03 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.015 – 0.02 |
| Copper (Cu) | ≤ 0.5 |
| Iron (Fe) | Balance |
Mechanical Properties (typical)
Values vary by product form, thickness and heat/lot — confirm with the supplied MTR.
| Property | Typical Value (room temp) |
|---|---|
| Tensile Strength (UTS) | ≈ 790 – 900 MPa (min typical range) |
| Yield Strength (0.2% offset) | ≈ 550 – 700 MPa (typical) |
| Elongation (A) | ≥ 15% (depends on thickness / form) |
| Hardness | Typically ≤ HRC 32 / Brinell ≈ 290 (max typical) |
| Service Temperature | Recommended operating range generally up to ≈ +300°C; low temperature toughness maintained down to moderate subzero temperatures — verify per application. |
Equivalent / Cross References
| System | Equivalent |
|---|---|
| UNS | S32750 |
| Alloy / Trade name | Super Duplex 2507 / Alloy 2507 / SAF 2507 |
| EN / DIN | X2CrNiMoN25-7-4 (W.Nr. 1.4410) |
| ASTM / ASME | Applicable product specs include ASTM A240 / A182 variants and ASME flange standards (match to product form) |
Frequently Asked Questions (FAQ)
Q: Why choose Super Duplex (S32750) plate flanges over 316L or 2205?
Super Duplex 2507 offers substantially higher strength and much better resistance to chloride pitting and stress corrosion cracking than 316L and improved pitting resistance and strength over standard duplex (2205). This allows thinner sections or longer life in aggressive chloride environments.
Q: What industries commonly use S32750 flanges?
Typical applications include offshore oil & gas, seawater systems and desalination, chemical and petrochemical plants, heat exchangers, pulp & paper, and any process requiring high pitting resistance and strength.
Q: Can S32750 flanges be welded and what post-weld steps are recommended?
S32750 can be welded with qualified procedures and filler metals compatible with super duplex chemistry. Preheat is minimal; post-weld solution annealing or controlled PWHT and careful control of interpass temperature and heat input are recommended in critical applications to restore phase balance and corrosion resistance—consult welding procedure specifications (WPS) and a materials engineer.
Q: What certification/documentation is supplied with flanges?
Synergy supplies MTRs (mill test reports) confirming chemistry and mechanical properties. Third-party inspection, PMI verification, and additional NDE (e.g., dye penetrant, ultrasonic) can be arranged on request.
In order to alter the physical and mechanical characteristics of metal without altering its original shape and size, we offer a variety of heat treatment services, including hydrogen heat treatment, HIC testing, blasting and painting, cutting, arc welding, epoxy cutting, PMI testing, hydro testing, NACE testing, and SSC testing. Although heat treatment is frequently linked to a metal's increased strength, it can also be used to change specific manufacturability goals, such enhancing machinability, formability, ductility, etc. The metal and heavy manufacturing sectors use our services. Customers have expressed great pleasure with our services' precision, efficacy, cost, and prompt delivery.
Flanges Testing Methods
Flanges Applications
We supply Pipes Worldwide.
Exporting Steel Pipes & Tubes to over 60 countries including Afghanistan, Albania, Andorra, Angloa, Austria, Australia, Bahrain, Bangladesh, Bhutan, Brazil, Brunei, Belarus, Belgium, Bulgaria, Cambodia, China, Cyprus, Croatia, Czech Republic, Canada, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Malta, Madagascar, Mexico, Moldova, Monaco, Malaysia, Maldives, Mongolia, Myanmar (Burma), Nepal, New Zealand, North Korea, Netherlands, Norway, Nigeria, Oman, Poland, Portugal, Pakistan, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia, Singapore, South Korea, South Africa, Sri Lanka, Sudan, Syria, Taiwan, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Venezuela, Vietnam, Yemen, etc.