We are Riddhi Siddhi Impex, a Mumbai-based supplier and stockist of Super Duplex Steel S32760 Coils, established in 2002. As an ISO 9001, 14001, and 45001-certified company, we hold UNS S32760 coil stock to ASTM A240 / ASME SA-240, slit in-house to ±0.1 mm, and export to 60+ countries. We have a monthly supply capacity of 400-500 tonnes, and EN 10204 Type 3.1 / 3.2 mill test certificates are available on request.
Super Duplex Steel S32760 coils are flat-rolled 25Cr super duplex stainless steel wound into continuous form, balancing austenite and ferrite in near-equal halves. Tungsten and copper additions of 0.50 to 1.00% each set the grade apart from 2507. Tungsten counts in the pitting formula, PREN = Cr + 3.3(Mo + 0.5W) + 16N, and every heat must clear 40. Chloride streams that retire 2205 leave this chemistry working. These coils are used in chemical processing units and marine engineering.
As a Super Duplex Steel S32760 Coils supplier, we stock these coils, buying source coil from reputed primary mills and slitting in-house to ±0.1 mm. Material ships solution annealed to ASTM A240, hot rolled or cold rolled, from 0.03 mm to 5 mm thick, with mill test certificates on request.
We provide ASTM A240 S32760 coils in solution annealed condition, with three surface finishes and three edge options.
| Parameter | Details |
|---|---|
| Standard | ASTM A240 / ASME SA-240 |
| Thickness | 0.03 mm to 5 mm |
| Width | Up to 2000 mm |
| Width Tolerance | ±0.1 mm |
| Coil ID | 150 mm to 610 mm |
| Coil OD | Up to 1800 mm |
| Condition | Solution annealed |
| Surface Finish | HR Pickled (No.1), 2B, BA (Bright Annealed) |
| Supply Forms | Hot rolled and Cold rolled |
| Edge | Mill edge, Slit edge, Deburred edge |
Copper earns its place in UNS S32760 coils by slowing damage and reducing acids. It is around 0.50 to 1.00% beside tungsten at the same level; ASTM A240 limits follow.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.030 max |
| Manganese (Mn) | 1.00 max |
| Phosphorus (P) | 0.030 max |
| Sulphur (S) | 0.010 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 24.0 to 26.0 |
| Nickel (Ni) | 6.0 to 8.0 |
| Molybdenum (Mo) | 3.0 to 4.0 |
| Nitrogen (N) | 0.20 to 0.30 |
| Copper (Cu) | 0.50 to 1.00 |
| Tungsten (W) | 0.50 to 1.00 |
ASTM A240 indicates a 750 MPa minimum tensile strength of S32760 coil, backed by 550 MPa yield, roughly twice that of 316L. Coils leave us solution annealed only, and continuous service stays under about 250 °C, given alpha-prime embrittlement near 475 °C.
| Property | Value |
|---|---|
|
Tensile Strength, minimum
|
750 MPa (109 ksi) |
|
Yield Strength (0.2% offset), minimum
|
550 MPa (80 ksi) |
|
Elongation in 50 mm, minimum
|
25% |
|
Hardness, maximum
|
270 HBW |
Zeron 100 coils indicate different codes across national systems. Order against the EN name or the German number, and the same ASTM A240 chemistry arrives.
| Country / Standard | Designation |
|---|---|
| USA (UNS) | S32760 |
| Europe (EN) | X2CrNiMoCuWN25-7-4 |
| Germany (W.Nr) | 1.4501 |
| China (GB) | 022Cr25Ni7Mo4WCuN |
These 5 industries consistently use the alloy S32760 coils leaving from our warehouses, each pairing severe chloride exposure with mechanical loads that rule out leaner stainless grades.
NORSOK-governed projects use this tungsten-bearing grade in subsea and topside packages. Coil feeds welded control lines, clamp components, and instrument housings in sour seawater duty. The 750 MPa tensile floor trims platform weight, and F55 super duplex coils cover matching rolled parts for forged assemblies.
Fabricators press exchanger baffles, column hardware, and lining sections from the coil for sulphuric and phosphoric streams carrying chlorides, a duty where 2205 gives up its corrosion allowance early and 316L never gets started.
Thermal desalination plants operate SDSS S32760 coils into evaporator linings, brine loop panels, and pump wear parts. Concentrated brine at a temperature hunts for crevice sites at gaskets and welds. A PREN above 40 keeps those surfaces passive between shutdowns.
Splash-zone brackets, seawater system components, and shaft sleeve stock come off 1.4501 coils in shipyards. Permanent immersion in warm seawater pits ordinary austenitics and coated carbon steel alike. This chemistry holds without coatings or cathodic protection, and the high yield keeps parts light on deck.
Bleach plant duty concentrates chlorine dioxide, heat, and acidity in one stream. Mills convert the coil into washer components, filtrate handling parts, and digester hardware that outlast 2205 equivalents. Slit to a width of ±0.1 mm, it enters fabrication without edge trimming.
As a Super Duplex S32760 coils exporter and stockist, we dispatch worldwide from two warehouses with export-grade packing.
| Parameter | Details |
|---|---|
| Packaging | Wooden cases, pallet packing |
| Incoterms | FOB, CIF, CFR, EXW Mumbai |
| Dispatch Points | Mumbai and Taloja warehouses |
| Standard Lead Time | 4 to 5 days |
| Urgent Dispatch | 2 to 3 days |
| Payment Terms | Advance, credit, LC |
| Certification | EN 10204 Type 3.1 / 3.2 on request |
Super Duplex Steel S32760 Coils price in India runs around ₹300-₹650 per kg. Export orders work out to USD 3.5-7.3 per kg. Tungsten, molybdenum, and nickel markets move these figures, along with thickness, finish, and quantity, so call or WhatsApp us for the current rate.
Super Duplex Steel S32760 Coils are available from us in 0.03 mm to 5 mm thickness and widths up to 2000 mm, slit to ±0.1 mm. Coil ID runs 150 mm to 610 mm, OD up to 1800 mm.
Super Duplex Steel S32760 Coils compare with S32750 coils as close relatives separated by chemistry. S32760 carries 0.50 to 1.00% each of copper and tungsten, which S32750 omits. Both grades clear PREN 40 under ASTM A240.
S32760 coils handle continuous service up to about 250 °C. Past that, alpha-prime embrittlement centred on 475 °C degrades toughness, and sigma phase forms between 600 and 950 °C.
Yes, we provide EN 10204 Type 3.1 / 3.2 mill test certificates with UNS S32760 coils on request, covering chemistry and mechanical values.
You can source Super Duplex Steel S32760 Coils in India from us at Riddhi Siddhi Impex. Ready stock at our Mumbai and Taloja warehouses dispatches in 4 to 5 days, or 2 to 3 days when urgent. Call or WhatsApp us and a quote will reach you within 24 hours.
