• Applications
• WT-71T9C 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.
  • - It 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 20~25ml.
  • - 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
  0.03	1.4	0.38	0.011	0.003	0.30

• 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℃)
  491	545	33	120

• Welding position
•