We are Riddhi Siddhi Impex, a Mumbai-based supplier and stockist of Super Duplex Steel S32760 Sheets & Plates, established in 2002. As an ISO 9001, 14001, and 45001 certified company, we keep UNS S32760 (W.Nr 1.4501) products in ready stock to ASTM A240 / ASME SA-240, support a 400-500 tonne monthly supply capacity, and export to 60+ countries with mill test certificates on request.
Super Duplex Steel S32760 sheets and plates are flat-rolled products with a microstructure split near 50/50 between austenite and ferrite. The EN name X2CrNiMoCuWN25-7-4 consists of a 25% chromium, 7% nickel, molybdenum-bearing base carrying deliberate copper and tungsten additions. Tungsten enters the pitting resistance formula, PREN = Cr + 3.3 (Mo + 0.5W) + 16N, at half the molybdenum weighting, and every heat clears the PREN 40 threshold that defines super duplex performance. Super Duplex Steel S32760 sheets and plates are typically used for high-corrosion offshore oil and chemical processing equipment.
As a reliable super duplex UNS S32760 sheet supplier, we hold UNS S32760 sheets and plates in solution-annealed condition at our Mumbai warehouse. Cold rolled sheets run 3.8 to 6 mm and hot rolled plates start at 6 mm, in widths up to 2000 mm, with EN 10204 Type 3.1 / 3.2 mill test certificates on request.
We provide ASTM A240 UNS S32760 sheets and plates in solution-annealed condition, with two surface finishes, two edge options, and standard or custom dimensions as tabulated below.
| Parameter | Details |
|---|---|
| Standard | ASTM A240 / ASME SA-240 |
| Thickness (Sheets, CR) | 3.8 mm to 6 mm |
| Thickness (Plates, HR) | 6 mm and above |
| Width | 1000 mm, 1219 mm, 1500 mm, 2000 mm; custom widths available |
| Width Tolerance | ±0.1 mm |
| Length | 2000 mm, 2500 mm, 3000 mm, 6000 mm; custom lengths on request |
| Condition | Solution annealed |
| Supply Forms | Hot rolled and Cold rolled |
| Surface Finish | 2B, BA (Bright Annealed) |
| Edge | Mill edge, Slit edge |
Tungsten at 0.50 to 1.00% separates S32760 sheet and plate from other super duplex grades; copper in the same band adds acid resistance. ASTM A240 limits appear below.
| 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 |
| Tungsten (W) | 0.50 to 1.00 |
| Copper (Cu) | 0.50 to 1.00 |
| Nitrogen (N) | 0.20 to 0.30 |
ASTM A240 sets a 750 MPa minimum tensile for UNS S32760 flat products with a 550 MPa yield and a generous 25% elongation floor. Material ships solution annealed only; no temper ladder applies.
| 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 |
Buyers working from European specifications can match the 1.4501 super duplex plate we stock against the listings below. JIS-based orders cite UNS S32760 directly.
| Country / Standard | Designation |
|---|---|
| USA (UNS) | S32760 |
| Europe (EN) | X2CrNiMoCuWN25-7-4 |
| Germany (W.Nr) | 1.4501 |
| China (GB) | 022Cr25Ni7Mo4WCuN |
| France (AFNOR) | Z3CND25-06Az |
| Sweden (SS) | 2328 |
| UK (BS) | Zeron 100 |
These 5 industries widely use the ASTM A240 S32760 sheets & plates we dispatch, usually where tungsten-bearing chemistry is written into the project specification for hot seawater or acidic chloride duty.
Produced-water systems, separator internals, and topside supports on offshore platforms lean on alloy S32760 plate. Sour wells stack sulphide stress on top of chloride attack, and the 750 MPa tensile keeps sections thin where every kilogram of deck weight carries a cost.
The copper addition is recouped in acid circuits. Fabricators turn 25Cr super duplex plate into reactor cladding, column trays, and exchanger baffles for sulphuric and phosphoric acid duty, where standard duplex consumes its corrosion allowance more quickly within a few campaigns.
UNS S32760 sheet lines flash chambers and brine recirculation loops in thermal desalination plants. Hot concentrated brine probes every gasket face and weld seam for crevice sites. A PREN above 40 keeps those surfaces passive between maintenance shutdowns.
Shipyards work Super Duplex S32760 plate into seawater piping supports, box coolers, and hull penetrations. Warm harbour water and stagnant bilge conditions pit lesser grades quickly, while this chemistry rides out both without coatings or cathodic help.
Bleach plants combine chlorides, acidity, and heat in one aggressive package. Washer drums, filtrate tanks, and digester internals cut from Super Duplex S32760 sheets and plates outlast 2205 equipment there, stretching the interval between rebuilds.
As a Super Duplex S32760 plate exporter, we pack every consignment for sea movement worldwide.
| 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 Sheets & Plates price in India ranges from ₹500 to ₹800 per kg. Export buyers generally pay $5.2 to $8.3 per kg. Tungsten and molybdenum surcharges move these figures, as do thickness, finish, and quantity, so call or WhatsApp us for today's rate.
We stock Super Duplex S32760 sheets from 3.8 mm to 6 mm and plates from 6 mm upward, in widths up to 2000 mm. Custom widths and lengths are available on request.
The difference between Super Duplex S32760 and S32750 sheets and plates comes down to chemistry. S32760 adds 0.50 to 1.00% each of tungsten and copper, which S32750 does not carry. Both grades keep PREN above 40 and fall under ASTM A240.
Super Duplex S32760 sheets and plates are covered by ASTM A240 and its ASME counterpart SA-240, the specifications for stainless plate, sheet, and strip.
Yes, we provide EN 10204 Type 3.1 / 3.2 mill test certificates with S32760 sheets and plates on request.
You can source Super Duplex S32760 sheets and plates in India from us at Riddhi Siddhi Impex. Our Mumbai warehouse holds UNS S32760 material ready for dispatch, and quotes will be provided within 24 hours. As a supplier, stockist, and exporter, we serve buyers across India and abroad.
