UNS S32750 Super Duplex Steel Spectacle Blind Flanges Manufacturer Stockist Exporter
We are manufacturers, stockist and exporters of UNS S32750 Super Duplex Steel Spectacle Blind Flanges in Mumbai.
UNS S32750 (Super Duplex) Spectacle Blind Flanges from Synergy Engineering Solution are engineered for the most demanding corrosion- and pressure-intensive applications. Manufactured from high-alloy super duplex stainless steel, these spectacle blind flanges combine exceptional pitting and crevice corrosion resistance with high tensile and yield strength — making them a preferred choice where standard austenitic grades would fail. Synergy’s production emphasizes metallurgical control and precision machining so each spectacle blind meets tight dimensional tolerances and surface finish requirements for reliable sealing and long service life.
As a manufacturer, stockist and global exporter, Synergy Engineering Solution maintains ready inventory of spectacle blind flanges in a broad range of sizes, pressure classes and face types to suit pipeline and valve isolation needs. The spectacle blind design (a solid “blind” disc linked to an open ring) allows quick visual verification and safe isolation of lines for maintenance, pigging or testing without removing the flange from the spool. Synergy supplies both bored and solid variants, with options for raised face, flat face or ring-type joint faces to match end-user flange systems.
Performance-wise, UNS S32750 spectacle blinds excel in chloride-bearing environments, seawater systems, chemical process plants, offshore installations and desalinization, where resistance to chloride pitting, crevice corrosion and stress corrosion cracking is critical. Their high yield strength also permits thinner sections compared with austenitic alternatives, delivering weight and cost efficiencies for large-diameter piping. Synergy’s quality controls include traceable material certificates, dimensional inspection and, where requested, mechanical testing and non-destructive examinations to assure clients of conformity and reliability.
Synergy Engineering Solution supports diverse industry requirements by offering customization and after-sales support — from special drilling patterns, companion ring blanks, to surface treatments and protective coatings for transit or harsh site conditions. As a stockist and exporter, Synergy services clients across Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, the USA, Canada and multiple African markets, ensuring fast turnaround for standard items and technically guided lead times for bespoke orders. Their export logistics and documentation support simplify customs clearance and project scheduling for international projects.
Types Of Flanges manufacturer
UNS S32750 Super Duplex spectacle blind flanges from Synergy provide a robust, long-life isolation solution where strength and corrosion resistance are non-negotiable. They are suited to oil & gas, offshore, marine, petrochemical, desalination and chemical processing plants that demand reliable line isolation under aggressive service conditions. For project inquiries Synergy can provide material test certificates, dimensional drawings, and stock availability to help engineers and procurement teams select the right spectacle blind flange for their specific application.
Why source from Synergy Engineering Solution & Exporter: beyond alloy expertise and documented quality systems, Synergy combines competitive pricing for project volumes with flexible minimum order quantities for maintenance spares, responsive pre-sales technical support, and reliable international shipping lanes. Customers benefit from single-point procurement for material sourcing, inspection documentation and export logistics.
UNS S32750 (Super Duplex 2507) Spectacle Blind Flanges — Specification
| Property | Details / Typical Range |
|---|---|
| UNS / Common name | UNS S32750 — Super Duplex 2507 (SAF 2507 / F53) |
| EN / Material No. | EN: 1.4410 (X2CrNiMoN25-7-4) |
| ASTM Standards (typical) | A182, A240, A479 (depending on product form & spec) |
| Typical Applications | Offshore, oil & gas, desalination, chemical processing, seawater systems, pressure vessels, pipelines and valves |
| Faces / Types Available | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ); bored (open) & solid (blind) spectacle blanks |
| Inspection / Certification | MTC / EN 10204 3.1 (available on request), PMI/chemical test, dimensional inspection, NDE on request |
Chemical Composition (typical ranges for UNS S32750 / 2507)
| Element | Typical % (weight) |
|---|---|
| Carbon (C) | ≤ 0.03 |
| Silicon (Si) | ≤ 1.0 |
| Manganese (Mn) | ≤ 2.0 (often ≤1.2) |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.015 |
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 5.0 (commonly ~3.0–4.5) |
| Nitrogen (N) | 0.24 – 0.35 |
| Copper (Cu) | ≤ 0.5 |
| Iron (Fe) | Balance |
Mechanical Properties (typical, annealed condition)
| Property | Typical Value / Minimum |
|---|---|
| Ultimate Tensile Strength (UTS) | ~800 – 1000 MPa (≈116 – 145 ksi) |
| Yield Strength (0.2% offset) | ~550 – 720 MPa (≈80 – 105 ksi) — often quoted ~550–620 MPa |
| Elongation (in 50 mm / 2 in) | ≥ 15 – 25% (depends on product form & spec) |
| Hardness | Rockwell C ≤ 32 (Brinell ~250–310 depending on source) |
| Impact Toughness | Good at ambient; low temperature values vary by heat treatment (specify on request) |
| Service Temperature Limit | Typically recommended for use below ~300–350°C (limit prolonged exposure above ~316°C / 600°F due to changes in toughness and corrosion resistance) |
Global Equivalent Grades & Trade Names
| Designation Type | Equivalent / Typical Name |
|---|---|
| UNS | UNS S32750 |
| Common / Alloy Name | Super Duplex 2507 (often marketed as SAF 2507®) |
| EN / DIN | 1.4410 (X2CrNiMoN25-7-4) |
| ASTM / ASME | Often supplied to A182 / A240 / A479 product specs depending on form (check ordering code) |
| Other Trade Names | SAF 2507, Alloy 2507, F53 (in some listings) |
Frequently Asked Questions (FAQ)
Q: What makes UNS S32750 (2507) different from regular duplex (e.g., 2205)?
A: Super Duplex 2507 has higher chromium, molybdenum and nitrogen content than standard duplex (2205), which results in substantially improved pitting, crevice and stress corrosion cracking resistance and higher mechanical strength.
Q: Are spectacle blind flanges in S32750 available in both bored and solid types?
A: Yes — Synergy Engineering Solution supplies both solid (blind) and bored (open) spectacle blanks in S32750, with RF/FF/RTJ face options to match mating flanges.
Q: What certifications and tests can Synergy provide?
A: Typical documentation includes MTC to EN 10204 3.1, chemical analysis (mill test certificate), dimensional inspection reports, and NDE or mechanical test reports on request. PMI verification is available for critical projects.
Q: Is UNS S32750 weldable for spectacle blind flange fabrication?
A: Yes — 2507 is weldable, but welding super duplex requires controlled procedures (pre/post-weld heat control, suitable filler metal, and cooling control) to preserve duplex balance and corrosion performance. Synergy can advise on welding procedures or provide finished parts.
Q: What industries commonly use S32750 spectacle blind flanges?
A: Typical industries include offshore & subsea, oil & gas upstream and downstream, petrochemical, seawater desalination, marine, and chemical processing where chloride exposure and high strength are concerns.
Q: Lead times & stock availability — what can I expect?
A: Synergy maintains stock of common sizes and pressure classes and also manufactures to order for bespoke sizes or drilling patterns. For emergency or project shipments to Oman, Qatar, Saudi Arabia, UAE, Kuwait, Spain, Germany, USA, Canada and African markets, contact Synergy’s export desk for real-time availability and shipping options.
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.
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