• Applications
  • WT-71T9 is designed for welding of 490MPa a low temperature steels.
    It can be used in a variety of applications including railcar, automotive, machinery, shipbuilding, bridges, heavy equipment etc.
  • Characteristics on Usage
    • - It is a titania type of flux cored wire for all-position welding.
    • - It provides smooth arc, low spatter levels, good weldability and good bead appearance
    • - Its design achieves low temperature impacts and can be used in semiautomatic and automatic applications.
  • Notes on Usage
    • - Proper preheating(50~150℃) 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.
    • - Gas flow rate is proper 20~25ℓ /min.
    • - 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
    V-up, OH 120~220A 140~260A 160~280A
  • Typical Chemical Composition of All-Weld-Metal (wt%) (Shielding gas : CO2)
  • Typical Chemical Composition of All-Weld-Metal (wt%)
    C Mn Si P S Ni
    0.04 1.34 0.48 0.014 0.008 0.04
  • Typical Mechanical Properties of All-Weld-Metal (Shielding gas : CO2)
  • Typical Mechanical Properties of All-Weld-Metal
    Y.S MPa T.S MPa EL(%) CVN-Impact Value J
    (-30℃)
    510 585 28 121
  • Welding position
  • Welding position
  • Approved by
  • JIS, ABS, CWB