FLUX CORE WIRE : SOREX  SFC-347L

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Gas Shielded Stainless Steel Flux Cored Wire (SFC-347L)

Fabricating high-temperature stainless steel equipment—such as chemical processing vessels, refinery heat exchangers, boiler tubes, and exhaust manifolds—demands filler metals that resist intergranular corrosion under extreme heat. The Gas Shielded Stainless Steel Flux Cored Wire (SFC-347L) series from Thermatech offers exceptional metallurgical protection powered by Flux Core Wire Sorex SFC technology.

Classified under AWS A5.22 E347T1-1 / E347T1-4, Gas Shielded Stainless Steel Flux Cored Wire (SFC-347L) incorporates Niobium (Nb) to bind carbon, preventing chromium depletion at grain boundaries during high-temperature exposure or multi-pass welding. Featuring a fast-freezing titania slag, this Flux Core Wire Sorex SFC consumable supports stable spray-like arc transfer across flat, vertical, and overhead positions. Compatible with 100% CO2 or Argon/CO2 gas mixtures, it produces brilliant, pore-free weld beads with self-peeling slag that consistently satisfy 100% radiographic non-destructive testing (NDT).

SFC-347L is a rutile flux cored tubular wire for all positional welding using pure CO2 shielding gas. It performs with smooth arc transfer, self-releasing slag, low spatter level, fine ripple etc. It provides good corrosion resistance in service temperature up to 760°C.

Technical Advantages of Gas Shielded Stainless Steel Flux Cored Wire (SFC-347L)

Engineered for high-efficiency stainless steel fabrication and severe service environments, this product line delivers distinct operational advantages:

• Niobium Stabilization Against Intergranular Corrosion: Prevents carbide precipitation during prolonged high-temperature exposure ($400^\circ\text{C}$ to $800^\circ\text{C}$), ensuring joint longevity in power plants and refineries.
• Exceptional All-Position Arc Control: Fast-freezing slag enables high-speed vertical-up and overhead welding with uniform bead contours and minimal edge undercut.
• High Travel Speed & Deposition Efficiency: Flux Core Wire Sorex SFC technology provides significantly higher metal deposition rates than conventional TIG or solid MIG wires, lowering total labor hours.
• Self-Detaching Slag Layer: The slag peels away effortlessly upon cooling, leaving a clean stainless bead profile with minimal post-weld grinding and cleaning.

APPLICATIONS :

Designed for welding stabilized stainless steels such as type 347 and 321, resistance overlay, joining of common austenitic stainless steel types 301, 302, 304, 304L and CF-8.

NOTE ON USAGE :

1. Use DC (+) polarity.
2. Maintain a higher welding speed in order to get enough penetration in the down hand welding position.

WELDING POSITION:

TYPICAL CHEMICAL COMPOSITION OF WELD METAL (wt%) :(Shielding Gas: 100% CO2)

Weld Metal Analysis :

TYPICAL MECHANICAL PROPERTIES OF WELD METAL:(Shielding Gas: 100% CO2)

TS N/mm2                                      572

EL%                                                  41

TYPICAL IMPACT VALUES :

IV 0°C J                                           48

APPROVALS :

ABS

SUGGESTED WELDING PARAMETERS (DC <+>)

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