Super Duplex S32760 — Sheet, Plate, Pipe & Tube, Fittings & Flanges
Also sold as UNS S32760 · W.Nr 1.4501 · F55 · Zeron 100 · SAF 32760
Super Duplex S32760 is a super duplex stainless steel with copper and tungsten, chosen for seawater firewater, injection and offshore piping. We manufacture, trade and export it as sheet, plate, pipe & tube, fittings, flanges; EN 10204 3.1 or 3.2 certificates are available on request / as specified in the PO. Markets we have supplied to include Oman, UAE, Saudi Arabia, Brazil, Argentina, Spain and Chile (India is the home market).
- UNS S32760
- W.Nr 1.4501
- PREN ≈ 41
- ρ 7.84 g/cm³
Reviewed by the Kanak Steel & Engineering Co. technical team · Updated October 2026
Super Duplex S32760 Names, Designations & Composition
Super Duplex S32760 is one alloy sold under several names. Its UNS number is S32760, the European material number is W.Nr 1.4501 and the EN name is X2CrNiMoCuWN25-7-4. The chart on the right shows the specified range of each main alloying element; the balance is the base metal.
Super Duplex S32760 Specifications by Product — Which Standard Applies?
The material standard changes with the product form. This is the table buyers ask for most.
| Product | Material standard | Dimensions |
|---|---|---|
| Super Duplex S32760 sheet | ASTM A240 | ASTM A480 / B906 |
| Super Duplex S32760 plate | ASTM A240 | ASTM A480 / B906 / A20 |
| Super Duplex S32760 pipe & tube | ASTM A790 · ASTM A790 · A928 | ASME B36.19 / B36.10 |
| Super Duplex S32760 fittings | ASTM A815 WPS32760 · ASTM A182 F55 | ASME B16.9 · B16.11 |
| Super Duplex S32760 flanges | ASTM A182 F55 | ASME B16.5 · B16.47 |
Super Duplex S32760 Chemical Composition
Under technical review for TDS.
| Element | Current requirement |
|---|---|
| Chromium | As specified |
| Nickel | As specified |
| Molybdenum | As specified |
| Nitrogen | As specified |
| Copper | As specified |
| Tungsten | As specified |
| Carbon | As specified |
| Manganese | As specified |
| Silicon | As specified |
| Iron | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification to be verified: ASTM A240 for UNS S32760.
Super Duplex S32760 Mechanical Properties
Under technical review for TDS.
| Property | Current requirement |
|---|---|
| Tensile strength | As specified |
| Yield strength 0.2% | As specified |
| Elongation | As specified |
| Hardness | As specified |
Numerical specification requirements are published only after the applicable current standard edition has been verified. Governing specification and condition to be verified: ASTM A240 for UNS S32760 — Solution-annealed plate.
Density & Physical Properties
| Property | Value |
|---|---|
| Density | 7.84 g/cm³ |
| Melting range | 1350 – 1400 °C |
| Magnetic | Magnetic (ferritic phase) |
| PREN (approx.) | ≈ 41 |
Super Duplex S32760 Equivalent Grades
Super Duplex S32760 Corrosion Resistance — What Each Element Does
Guaranteed PREN of 40 or more for seawater systems.
Copper and tungsten add resistance to sulphuric acid and crevice corrosion.
High yield strength, in the super duplex class.
Keep service below about 250 °C.
Where Is Super Duplex S32760 Used? Applications
Super Duplex S32760 vs 2507, 2205 and 625
| Grade | PREN (approx.) | Pick it for |
|---|---|---|
| Duplex 2205 | ≈ 35 | Strength with chloride resistance at a stainless-steel budget |
| Super Duplex S32760 | ≈ 41 | Seawater firewater, injection and offshore piping |
| Super Duplex 2507 | ≈ 42 | Seawater and high-chloride service where strength also matters |
| Inconel 625 | ≈ 51 | Seawater, high strength and high temperature in one alloy |
Welding Super Duplex S32760
| Matching filler | ER2594 · Zeron 100X |
|---|---|
| Also used | Qualified procedures with ferrite and impact checks |
Super Duplex S32760 — questions buyers ask
What is Super Duplex S32760?
Super Duplex S32760 is a super duplex stainless steel with copper and tungsten. It is chosen for seawater firewater, injection and offshore piping.
Which standards cover Super Duplex S32760 products?
Sheet: ASTM A240; Plate: ASTM A240; Pipe & Tube: ASTM A790 · ASTM A790 · A928; Fittings: ASTM A815 WPS32760 · ASTM A182 F55; Flanges: ASTM A182 F55. Always name the standard and edition on your order.
What is the UNS number of Super Duplex S32760?
UNS S32760, with the European material number W.Nr 1.4501.
What is the density of Super Duplex S32760?
7.84 g/cm³ — use it to calculate weights: plate kg = L(m) × W(m) × t(mm) × 7.84.
Super Duplex S32760 or Inconel 625?
Super Duplex S32760 suits seawater firewater, injection and offshore piping; Inconel 625 is the step up for seawater, high strength and high temperature in one alloy.
Sources: the ASTM / ASME specifications named on this page and producer datasheets · Last updated October 2026