Physical properties
| Density | 7.8 | g/cm³ |
| Modulus E | 200 / 194 / 186 / 180 | GPa @ 20 / 100 / 200 / 300 °C |
| Thermal conductivity | 15 | W/(m·K) @ 20 °C |
| Thermal expansion | 13.0 / 13.5 / 14.0 | 10⁻⁶/K, mean 20-100 / 20-200 / 20-300 °C |
| Specific heat | 500 | J/(kg·K) @ 20 °C |
| Resistivity | 0.8 | Ω·mm²/m @ 20 °C |
Informative values: they vary with composition, condition and test method. Use the governing standard or measured mill data for pressure and heat-transfer calculations.
Values are taken from EN 1.4501 (the same alloy) and are informative.
Duplex grades are magnetic.
Chemical composition
Nominal: mid-range where both limits are given, the cap where only a maximum is, balance takes the remainder. Exact specified ranges below.
| Element | Name | Content % | |
|---|---|---|---|
| Main elements7 elements | |||
| Fe | Iron | Bal. | |
| Cr | Chromium | 24 – 26% | |
| Ni | Nickel | 6 – 8% | |
| Mo | Molybdenum | 3 – 4% | |
| Cu | Copper | 0.5 – 1% | |
| W | Tungsten | 0.5 – 1% | |
| N | Nitrogen | 0.2 – 0.3% | |
| Element | Name | Content % | |
|---|---|---|---|
| Minor & residual5 elements | |||
| C | Carbon | ≤ 0.03% | |
| Mn | Manganese | ≤ 1% | |
| Si | Silicon | ≤ 1% | |
| P | Phosphorus | ≤ 0.03% | |
| S | Sulphur | ≤ 0.01% | |
Mechanical minima by form
Guaranteed values differ by form, size and delivery condition; quotations confirm the specification, form, size and condition.
| Form | Condition | Rm MPa | Rp0.2 MPa | A ≥ % | Other requirements and notes |
|---|---|---|---|---|---|
| Bar and forgings | |||||
| Bars (EN 10088-3, ≤160 mm) | +AT (solution annealed) | 730 – 930 | ≥ 530 | ≥ 25 | Also specified: Hardness ≤ 290 HBW KV ≥ 100 J longitudinal. |
| Pressure forgings (EN 10222-5, ruling section ≤160 mm) | +AT (solution annealed) | 730 – 930 | ≥ 530 | ≥ 25 | Tangential/transverse A ≥ 20 %; KV ≥ 150/90 J (long./tang.). |
| Plate, sheet and strip | |||||
| Plate, sheet and strip | Solution treated | ≥ 750 (109 ksi) | ≥ 550 (80 ksi) | ≥ 25 | Also specified: Hardness ≤ 310 HBW / 32 HRC |
| Cold-rolled strip (EN 10088-2, ≤8 mm) | +AT (solution annealed) | 750 – 1000 | ≥ 550 | ≥ 20 | |
| Hot-rolled plate (EN 10088-2, ≤75 mm) | +AT (solution annealed) | 730 – 930 | ≥ 530 | ≥ 25 | Hot-rolled strip (≤13.5 mm): Rm 750–1000 MPa. KV over 10 mm: strip ≥ 150/90 J, plate ≥ 100/60 J (long./transv.). |
| Tube and pipe | |||||
| Heat-exchanger and instrument tubing | Solution treated at 1960–2085 °F [1070–1140 °C], water quenched or otherwise rapidly cooled | ≥ 750 (109 ksi) | ≥ 550 (80 ksi) | ≥ 25 | |
| Seamless and welded pipe | 1960–2085 °F [1070–1140 °C], rapid cooling in water or by other means | ≥ 750 (109 ksi) | ≥ 550 (80 ksi) | ≥ 25 | Also specified: Hardness ≤ 310 HBW / 32 HRC H₂S service: NACE MR0175 / ISO 15156-3 sets the H₂S partial-pressure limit from the heat's actual FPREN: 20 kPa for 40–45, 10 kPa for 30–40 (up to 232 °C); wrought S32760 also has a 150 °C, 500 kPa limit with chloride up to 1000 mg/L and pH above 3.3. Solution-annealed, 35–65 % ferrite. |
| Electric-fusion-welded pipe with filler metal | Post-weld solution treatment 2010–2085 °F [1100–1140 °C], rapid cooling in air or water | ≥ 750 (109 ksi) | ≥ 550 (80 ksi) | ≥ 25 | Also specified: Hardness ≤ 310 HBW / 32 HRC Mechanical properties follow the plate used. Solution treatment at 1100 °C (2010 °F) minimum. |
| Seamless pressure tubes (EN 10216-5, wall ≤30 mm) | +AT (solution annealed) | 800 – 1000 | ≥ 550 | ≥ 20 | KV ≥ 150/90 J (long./transv.), at −40 °C ≥ 40 J transverse. |
| Welded pressure tubes (EN 10217-7, wall ≤30 mm) | +AT (solution annealed) | 800 – 1000 | ≥ 550 | ≥ 20 | KV ≥ 100/100 J (long./transv.), at −40 °C ≥ 40 J transverse. |
| Fittings and flanges | |||||
| Fittings | Solution treated | ≥ 750 (109 ksi) | ≥ 550 (80 ksi) | ≥ 25 | Also specified: Hardness ≤ 270 HBW |
Where this grade is recommended
Matched in 2 service conditions; ranks and scores computed from the condition-scoring matrix.
| Service condition | Industry | Temperature | Rank | Score |
|---|---|---|---|---|
| Desalination & RO | Marine & Offshore | ≤ 45 °C | 5 / 12 | 90 |
| High-velocity seawater | Marine & Offshore | ≤ 40 °C | 7 / 9 | 87 |
Designations & equivalents
| W.Nr. (Germany) | 1.4501 |
| EN designation | X2CrNiMoCuWN25-7-4 |
| Trade name(s) | Zeron 100 |
| ASTM / AISI | A182 / A240 / A276 / A479 / A484 / A789 / A790 / A815 / A928 |
Cross-references are common near-equivalents for search and shortlisting; substitution across standards requires clause-by-clause verification. All grades in one cross-reference table →
Applicable standards
14 specifications. Name the standard and its edition on the order.
Guaranteed values and required tests differ between specifications — see Mechanical minima by form for the figures per form.
Frequently asked questions
What is Zeron 100 Super Duplex · UNS S32760?
Zeron 100 Super Duplex · UNS S32760 — Duplex stainless steel. W/Cu-bearing super duplex — seawater pumps, valves and erosive service
What is the maximum service temperature of S32760?
Typically about 280 °C; the practical limit depends on media, stress and design life — acceptance per the governing standard.
What is the tensile strength of S32760?
The specified minimum tensile strength is 750 MPa for the main product form. Minima for other forms and sizes are listed under "Mechanical minima by form" on this page.
Which standards cover S32760?
ASTM A182, ASTM A240, ASTM A276, ASTM A479, ASTM A484, ASTM A789, ASTM A790, ASTM A815, ASTM A928, EN 10088-2 (sheet, plate, strip), EN 10088-3 (bar, rod, wire, sections), EN 10216-5 (seamless pressure tubes), EN 10217-7 (welded pressure tubes), EN 10222-5 (forgings for pressure purposes)
Where is S32760 typically used?
Desalination & RO (Marine & Offshore); High-velocity seawater (Marine & Offshore)
In which forms is S32760 available?
Tube, plate, strip, bar, forgings, wire and other forms — sizes and delivery condition confirmed per order, with EN 10204 3.1 / 3.2 certification.
Same series
Download PDF datasheet
This grade’s datasheet as an A4 PDF — for filing, printing or forwarding to colleagues.
Download PDF datasheetSupply & enquiry
Tube & pipeφ1 – 219 × 0.25 – 25 mm
Plate4.76 – 80 mm
Barφ8 – 300 mm
Wire & filler metalsφ0.01 – 8 mmFor this grade we can supply, against your service conditions:
- Tube, plate, strip, bar, forgings, wire and more — with size range and lead time
- Chemistry and mechanical test report (EN 10204 3.1 / 3.2)
- Like-for-like alternatives and selection advice
- Applicable standards and inspection scope
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