• Applications
  • WT-70T9 is designed for welding of 50kgf/mm² high tensile steel with outstanding mechanical properties.
  • Characteristics on Usage
    • - Typical applications include building, shipbuilding, bridges, machinery, vehicles, offshore structures and general fabrications.
    • - It is a flux cored wire for Flat & H-Fillet efficient welding with CO2 shielding gas.
    • - It has better CVN toughness at low temperatures.
  • 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.
    • - One-side welding defects such as hot cracking may occur with wrong welding parameter such as high welding speed.
    • - Shielding gas should be used 100% 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
    0.04 1.48 0.52 0.014 0.010
  • Typical Mechanical Properties of All-Weld-Meta(Shielding gas : CO2)
  • Typical Mechanical Properties of All-Weld-Meta
    Y.S MPa T.S MPa EL(%) CVN-Impact Value J
    (-30℃)
    500 580 27 74
  • Welding position
  • Welding position