FCAW
KFW-309L

Shielding Gas:100%CO₂/Ar+20%CO₂
Weld metal is austenitic structure with 22.5% Cr-12% Ni. Suitable for joining 304 stainless steel to carbon steel or low alloy steel.

▎Classification

AWS A5.22/A5.22ME309LT1-1/4
JIS Z3323TS309L-FB1
EN ISO 17633-AT 23 12 L P C1/M21 2
GB T17853E309LT1-1/4

▎Applications and Features

  • Weld metal is austenitic structure with 22.5% Cr-12% Ni.
  • Excellent weldability and crack resistance due to proper ferrite content in the weld metal.
  • Stable arc, good slag removal, low spatters, X-ray quality welds and good penetration.
  • Suitable for joining 304 stainless steel to carbon steel or low alloy steel.

▎Welding Instruction

  • For other instructions, please refer to Appendix D.
  • For extra information, please refer to Appendix F.

▎Applications

Suitable for joining 304 stainless steel to carbon steel or low alloy steel.

▎Typical Chemical Composition of Weld Metal (wt%)

CSi
Mn
PSCrNi
0.020.580.920.0220.00822.2312.21

▎Typical Mechanical Properties of Weld Metal

Tensile Strength
N/mm²
Yield Strength
N/mm²
Elongation
%
57441137

▎Size and Suggested Operating Range (DC+)

Diameter (mm)0.91.21.6
Flat/H-fillet110-150A150-220A200-300A
V-up100-130A130-160A150-180A

▎Certification