OK 69.25

A basic coated stainless steel stick electrode designed for welding corrosion‑resistant, non‑magnetic and cryogenic stainless steels. It produces a fully austenitic Cr‑Ni‑Mo weld metal with increased Mn and N content.

Key Features

• Basic coated electrode for stainless steel welding
• Provides austenitic Cr‑Ni‑Mo weld metal with high Mn and N
• Available in VacPac hermetically sealed packaging for moisture protection
• Multiple diameters (3.2 mm and 4.0 mm) for versatile amperage ranges

Specifications

• Classifications: EN ISO 3581‑A : E 20 16 3 Mn N L B 4 2; SFA/AWS A5.4 : E316LMn‑15; Werkstoffnummer 1.4455
• Welding Current: DC+
• Ferrite Content: FN < 0.5
• Alloy Type: CrNiMo
• Coating Type: Basic
• Yield Strength: 450 MPa (as welded)
• Tensile Strength: 650 MPa (as welded)
• Elongation: 35 % (as welded)
• Charpy Impact @ 20 °C: 90 J (as welded)
• Charpy Impact @ –196 °C: 50 J (as welded)
• Typical Weld Metal Analysis (% ): C 0.04, Mn 6.5, Si 0.5, Ni 16.0, Cr 19.0, Mo 3.0, N 0.15, FN 0
• Deposition Data:
  • 3.2 × 350 mm: 70‑100 A, 24 V, 62 % efficiency, 72 s/fusion, 1.2 kg/h
  • 4.0 × 350 mm: 100‑140 A, 25 V, 64 % efficiency, 74 s/fusion, 1.8 kg/h

Applications

• Welding of corrosion‑resistant stainless steel structures
• Cryogenic and non‑magnetic stainless steel fabrication
• General purpose SMAW where flexibility and quality are required