SAF 2205™

Tube and pipe, seamless数据表

数据表已更新 2021-03-03 16:29 (取代之前所有版本)


SAF 2205™ is a duplex (austenitic-ferritic) stainless steel characterized by:

  • High resistance to stress corrosion cracking (SCC) in chloride-bearing environments
  • High resistance to stress corrosion cracking (SCC) in environments containing hydrogen sulfide
  • High resistance to general corrosion, pitting, and crevice corrosion
  • High resistance to erosion corrosion and corrosion fatigue
  • High mechanical strength - roughly twice the proof strength of austenitic stainless steel
  • Physical properties that offer design advantages
  • Good weldability


  • UNS: S31803, S32205
  • EN Number: 1.4462
  • EN Name: X2CrNiMoN 22-5-3
  • W.Nr.: 1.4462
  • DIN: X2CrNiMoN 22 5 3
  • SS: 2377
  • AFNOR: Z2.CND22.05.03

Product standards

Seamless tube:
EN 10216-5, NFA 49-217
Seamless and welded tube:
Seamless and welded pipe:
Flanges and valves:
ASTM A182; A815
Plate, sheet and strip:
ASTM A240, EN 10088-2
Bar and shapes:
ASTM A276, A479, EN 10088-3 
Forged billets EN 10088-3


  • ASME Boiler and Pressure Vessel Code, Section VIII, Div. 1 and Div. 2
  • VdTÜV-Werkstoffblatt 418 (Ferritisch-austenitischer Walz- und Schmiedestahl)
  • NACE MR0175/ISO 15156 (Petroleum and natural gas industries - Materials for use in H2S-containing Environments in oil and gas production - Part 3: Cracking-resistant CRAs (corrosion resistant alloys and other alloys) (Published:2015)
  • NACE MR0103-2012, Materials Resistant to Sulfide Stress Cracking in Corrosive Petroleum Refining Environments
  • DNV (Approval of Seamless Ferritic/Austenitic Stainless Steel Tubes and Pipes in Quality Sandvik SAF 2205)
  • ASME B31.3 Process Piping