• Applications
• WT-81B8 is designed for welding of 9%Cr-1%Mo steel such as A335-P9 piping and A213-T9 tubing.
• Characteristics on Usage
• • - It is a rutile type flux cored wire for all-position welding.
  • - It has easy slag removal and good weld soundness.
  • - The weld metal contain about 9% Cr-1%Mo, so excellent creep rupture strength.
• Notes on Usage
• • - Gas flow rate is proper 15~25mℓ.
  • - Shielding gas should be used Ar+20~25%CO2.
  • - Preheat at 150~200℃ and PWHT at 745℃.
• Size Available and Recommended Currents ( DC + )

• Size Available and Recommended Currents ( DC + )

  Dia(mmØ)		1.2	1.6
  Position
  F	Amp	200~340A	300~420A
  HF		200~340A	300~420A
  V-up, OH		120~220A	160~280A

• Typical Chemical Composition of All-Weld-Metal (wt%) (Shielding gas : MIX)

• Typical Chemical Composition of All-Weld-Metal (wt%)

  C	Mn	Si	Cr	Ni	Mo	Cu	N
  0.08	0.52	0.32	9.3	0.3	1.05	0.11	0.02

• Typical Mechanical Properties of All-Weld-Metal (Shielding gas : MIX)

• 용착금속의 기계적 성질의 일례

  Y.S MPa	T.S MPa	EL(%)	PWHT
  542	665	21	745℃×2hr

• Welding position
•