Super-Duplex || S32750 || 1.4410 || F53
Corrosion-resistant, austenitic ferritic super-duplex steel
The material S32750 is a corrosion-resistant, austenitic ferritic type of super-duplex steel. It is particularly suitable for applications requiring a high resistance and strength – in particular when conventional corrosion-resistant duplex steels no longer meet the corrosion demands.
Special stainless steel
Super-Duplex || 1.4410
The steel is characterised by the following properties:
- Excellent resistance to pitting and crevice corrosion, PREN = ≥38
- Higher strength than conventional austenitic stainless steels
- Good weldability
- High resistance to general corrosion
- High resistance to acidic solutions
- High resistance to stress corrosion
- Chemical industry
- Petrochemical industry
- Pulp / Paper industry
- Sea and seawater plants
- Flue gas systems
- Shipbuilding / Offshore
Chemical values – Reference analysis (weight proportion in %)
|Cr||24 – 26|
|Mo||3,5 – 5,0|
|Ni||6 – 8|
|N||0,24 – 0,32|
Mechanical values at room temperature
|Tensile strength N/mm²||800 – 1000|
|Tension elastic limit Rp 0,2 N/mm²||550|
|Breaking elongat ≤ 3 ≤ 75 mm Dicke A5 %||20|
Assignment to current and older standards
- Designation according to DIN: X 2 CrNiMoN 25-7-4
- ASTM Grade: S 32750
- EN: 1.4410
- ASME: Superduplex
- AFNOR: X2CrNiMoN 22-5-3
- SIS: 2377
- UNS: S 32750
- Vd TÜV 508
Tables and rates
Table of measurements
Table of materials
Stock market information
Scope of delivery
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