Sandvik 2RK65™

Tube and pipe, seamless数据表

数据表已更新 2020-01-17 16:07 (取代之前所有版本)


Sandvik 2RK65™ is a high-alloy austenitic stainless steel intended for use under severe corrosive conditions within the process industry. The grade is characterized by:

  • Very good resistance to attacks in acidic environments, e.g. sulfuric, phosphoric and acetic acid
  • Very good resistance to pitting in neutral chloride-bearing solutions
  • Much better resistance to crevice corrosion than steels of the ASTM 304 and ASTM 316 types
  • Very good resistance to stress corrosion cracking
  • Good weldability


  • ASTM: '904L'
  • UNS: N08904
  • ISO: 4539-089-04-I
  • EN Number: 1.4539
  • EN Name: X1NiCrMoCu25-20-5

Product standards

  • ASTM A213 (seamless/welded tube)
  • ASTM A269 (seamless/welded tube)
  • ASTM A312 (seamless/welded pipe)
  • ASTM A240 (plate and sheet)
  • ASTM A276, A479, A484 (bar)
  • ASTM B677 (seamless tube and pipe)
  • EN 10216-5 (seamless tube and pipe)


  • Approved for use in ASME Boiler and Pressure Vessel Code section VIII, div. 1 construction
  • VdTÜV-Werkstoffblatt 421 (Austenitischer Walz-und Schmiedestahl)