1.4507
- S32550
- F61
Superduplex stainless steels have a very high resistance to localized corrosion in chloride media, combined with a high mechanical strength.
Mechanical Properties
| Tensile strength: | 760 | N/mm² |
| Yield strength 0,2% : | 550 | ≥ N/mm² |
| Elongation: | 25 | ≥ % |
| Hardness HB30: | 270 | ≤ HB |
Chemical Composition
Carbon
C
0,03% max
Silicon
Si
0,07% max
Magnese
Mn
2,0% max
Phosphorus
P
0,035% max
Sulphur
S
0,015% max
Chromium
Cr
24-26% max
Nickel
Ni
6-8% max
Nitrogen
N
0,20-0,30% max
Heat Treatment
1040°C mini followed by rapid cooling in air or water.
Excellent corrosion resistance in wide variety of corrosive chemicals including sulphuric, phosphoric, and nitric acid.
can be welded using the following
processes: SMAW, GTAW (with filler), GMAW, PAW
(with filler).
Marking
All material will be marked as follow:
- Manufacturer’s name
- Material grade
- Size
- Heat Number
Certification
Material will be delivered with certificate EN 10204 3.1
Other Duplex / Superduplex grades
| EURONORM/DIN | WERKSTOFF NR. | AISI | UNS | BRAND NAME |
|---|---|---|---|---|
| X2 CrNiMoN 25-7-4 | 1.4410 | F53 | S 32750 | URANUS 47N ® |
| X2 CrNiMoN 22-5-3 | 1.4462 | F51/F60 | S 31803/S32205 | URANUS 45N ® |
| X2 CrNiMoCuWN 25-7-4 | 1.4501 | F55 | S 32760 | ZERON 100 ® |
| X2 CrNiMoCuN 25-6-3 | 1.4507 | F61 | S 32550 |
