FCAW
KFW-309LMo

Shielding Gas: 100%CO₂/Ar+20%CO₂
Weld metal contains Mo and low carbon contents, which provide superior corrosion resistance.

▎Classification

AWS A5.22E309LMoT1-1/4
JIS Z3321TS309LMo-FB1
EN 17633-AT 23 122 LP C1/M21 2
GB T17853E309LMoT1-1/4

▎Applications and Features

  • Weld metal contains Mo and low carbon contents, which provide superior corrosion resistance.
  • It is suitable for joining stainless steel to carbon steel or low alloy steel.
  • It has flat bead shape and good wettability.

▎Welding Instruction

  • For welding dissimilar metals, please refer to Appendix I.
  • For other instructions, please refer to Appendix D.
  • For extra information, please refer to Appendix F.

▎Applications

It is suitable for joining stainless steel to carbon steel or low alloy steel.

▎Typical Chemical Composition of Weld Metal (wt %) (Shielding Gas : CO₂)

CSi
Mn
PSCrNiMo
0.0360.441.530.0290.0623.2812.812.52

▎Typical Mechanical Properties of Weld Metal (Shielding Gas : CO₂)

Tensile Strength
N/mm²(kgf/mm²)
Elongation
%
590(60.2)33

▎Size and Suggested Operating Range (DC+)

Diameter (mm)1.21.6
F/H-fillet 100-300A
20-36V
200-360A
26-40V
V/OH100-200A
24-30V

▎Certification