• Applications
  • Repairing of various kinds of cast iron produtcs.
  • Characteristics
    • - W-EST is a graphite type coated electrode, depositing weld metal consisting of pure iron.
    • - It is designed for welding of cast iron when machining of the deposit is not required.
    • - Hardness of the bonded area will be higher than that with nickel type electrode.
  • Notes on Usage
    • - Clean base metal before welding.
    • - If there is a possibility that cracking spreads, make the stopholes at both ends of repairing part.
    • - It is not necessary preheating and postheating in general but satisfactory results can be obtained by preheating at 100~200℃ in accordance with kind, shape and size of base metal.
    • - Keep the weld metal length less than 50mm(2 inch) to disperse welding heat.
  • Sizes Available and Recommended Currents ( AC or DC ± )
  • Sizes Available and Recommended Currents ( AC or DC ± )
    Size mm (in) 2.6 (3/32) 3.2 (1/8) 4.0 (5/32)
    Length mm(in) 350 (14) 350 (14) 400 (16)
    F 60~90 80~120 120~150
  • Typical Chemical Composition of All-Weld Metal (wt%)
  • Typical Chemical Composition of All-Weld Metal (wt%)
    C Mn Si P S
    1.36 0.50 0.65 0.018 0.006
  • Typical Mechanical Properties of All-Weld Metal
  • Typical Mechanical Properties of All-Weld Metal
    T.S (N/mm²) Hardness (HRB)
    512 480
  • Welding positions
  • Welding positions