• Applications
  • WT-81W is designed all position welding of 560MPa weather-proof steels.
  • Characteristics on Usage
    • - The weld metal contain Cr- Ni- Cu alloys and has good weather-proof properties.
    • - 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.
  • 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 180~300A 180~340A 200~380A
    HF 180~300A 180~340A 200~380A
    V-up, OH 160~260A 160~280A 180~280A
  • Typical Chemical Composition of All-Weld-Metal (wt%) (Shielding gas : CO2)
  • 용착금속의 기계적 성질의 일례
    C Mn Si P S Cr Ni Cu
    0.04 1.20 0.54 0.014 0.011 0.54 0.58 0.45
  • 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℃)
    550 630 28 50
  • Welding position
  • Welding position