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Special Steels


304H || 316H || 317L || 321H || 347H || S31803 || S32750 || S32760 || S31254 || S32550 || 410 ||


We are your one-stop shop for special steels & modified steel grades.

With our special steels we support Customers engaged in several market fields, such as Energy, Aerospace, Oil & Gas, Chemical, Petrochemical, Water Treatment, Pulp & Paper, General Engineering,...

We supply BARS, SHEETS, PLATES, PIPING & TUBING, FASTENERS in various hard to find steels.


1.4948 || 1.4919 / 1.4401 || 1.4438 || 1.4878 || 1.4961 / 1.4550 || 1.4462 || 1.4410 || 1.4501 || 1.4547 || 1.4507 || 1.4006 ||



- stock  - fasteners stock   - production
    - sales@af-trading.it


F51 || UNS S31803 - S32205, 1.4462, SAF 2205®, X2CrNiMoN22.5.3, DUPLEX

F51 || UNS S31803 - S32205, 1.4462, SAF 2205®, X2CrNiMoN22.5.3, DUPLEX

This duplex stainless steel has a good resistance to corrosion stress combined with high mechanical strength.
S31803 is very popular in Oil&Gas market.

NORSOK M630 MDS D41; D42; D43; D44, D45; D47

Main fields of application:

Oil&Gas, Chemical, Hydro, Pulp & Paper, Petrochemical, Pressure Vessels.


Our products in F51 || UNS S31803 - S32205, 1.4462, SAF 2205®, X2CrNiMoN22.5.3, DUPLEX are:

  • Bars
  • Sheets
  • Plates
  • Piping & Fittings
  • Fasteners

Main specifications / standards usually required on F51 S31803 : ASTM A182, ASTM A479, ASTM A276, ASME SA182, ASME SA479, ASME SA276, ASTM A240, ASME SA240, ASTM A790, ASME SA790, ASTM A958, ASME SA958, ASTM A815, ASME A815, ASTM A789, ASME SA269, NORSOK M630, NORSOK M650, MDS D47, MDS D45, MDS D41, MDS D42, MDS D43, MDS D44.


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F51 S31803 round bars, F51 S31803 hexagonal bars, F51 S31803 sheets, F51 S31803 plates, F51 S31803 pipes, F51 S31803 piping, F51 S31803 fittings, F51 S31803 tubes, F51 S31803 tubing, F51 S31803 elbows, F51 S31803 reducers, F51 S31803 Tee, F51 S31803 tubes, F51 S31803 tubing, F51 S31803 fasteners, F51 S31803 bolts, F51 S31803 stud bolts, F51 S31803 screws, F51 S31803 nuts, F51 S31803 washers