• Applications
  • WT-70 is designed for welding of 50kgf/mm² class high tensile steel. Building, shipbuilding, bridges, machinery, vehicles, offshore structures and general fabrications.
  • Characteristics on Usage
    • - WT-70 has very efficient welding due to higher deposition rate.
    • - It is used for joining from mild tensile steels to 590MPa class high tensile steels, and is suitable for both fillet and butt welds.
  • Notes on Usage
    • - Proper preheating(50~150°C) and interpass temperature must be used in order to release diffusible hydrogen which may cause cracking in weld metal when electrodes are used for medium and heavy plates.
    • - Shielding gas should be used 100% CO2 or Ar+20~25% CO2.
  • Sizes Available and Recommended Currents ( DC + )
  • Sizes Available and Recommended Currents ( DC + )
    Dia(mmØ) 1.2 1.4 1.6
    Position
    F Amp 180~340A 200~360A 200~420A
    HF 180~340A 200~360A 200~420A
  • Typical Chemical Composition of All-Weld-Metal (wt%) (Shielding gas : CO2)
  • Typical Chemical Composition of All-Weld-Metal (wt%)
    C Mn Si P S
    0.05 1.43 0.64 0.012 0.011
  • Typical Mechanical Properties of All-Weld-Metal (Shielding gas : CO2)
  • ypical Mechanical Properties of All-Weld-Metal
    Y.S MPa T.S MPa EL(%) CVN-Impact Value J
    (-20℃)
    538 580 27 66
  • Welding position
  • Welding position
  • Approved by
  • KS, JIS