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Alleima® 2RK65

UNS N08904 | EN 1.4539 | ASTM 904L

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ItemOutside Diameter, inchStock
TST-2RK65-1-SCH101
TST-2RK65-1-SCH401
TST-2RK65-11/2-SCH101.1/2
TST-E-2RK65-11/2-SCH401.1/2
TST-2RK65-11/4-SCH101.1/4
TST-E-2RK65-11/4-SCH401.1/4
TST-2RK65-1/2-SCH101/2
TST-2RK65-1/2-SCH401/2
TST-E-2RK65-2-SCH402
TST-2RK65-21/2-SCH102.1/2
TST-E-2RK65-21/2-SCH402.1/2
TST-2RK65-3-SCH103
TST-E-2RK65-3-SCH403
TST-2RK65-3/4-SCH103/4
TST-E-2RK65-4-SCH404

About

Alleima® 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

Standards

  • 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)

Approvals

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

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