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CLASSIFICATION: EC347 per AWS A5.22

This gas-shielded, metal cored, stainless steel electrode has a nominal weld metal composition of 20% chromium, 10% nickel and 0.7% columbium. The columbium in SelectAlloy 347-C forms a stable carbide, which reduces chromium carbide precipitation and increases resistance to intergranular corrosion.

APPLICATIONS: Utilized to weld Types 321, 347 and 348 stainless steel, SelectAlloy 347-C finds wide application in the welding of furnace parts, pressure vessels, chemical tanks and automotive parts.

DIAMETERS: .045", 1/16"

SHIELDING GASES: Ar/1-2% O2, Ar/1-2% CO2, 40-50 cfh

WELDING POSITIONS: Flat and Horizontal

CHARACTERISTICS:

  • Higher deposition rates and more controlled penetration than solid wire.
  • Operates with a smooth, spray arc.
  • Well suited for making small butt, lap and fillet welds on thin material at elevated travel speeds.
  • Produces little or no slag and virtually no spatter.
TYPICAL MECHANICAL PROPERTIES
  98% Ar/
2% O2
Ultimate Tensile Strength (psi) 92,900
Yield Strength (psi) 63,100
Percent Elongation 38

TYPICAL DEPOSIT COMPOSITION
Wt% C Mn Si Ni Cr N Cb
CO2 .05 1.20 .47 10.00 20.10 .05 .70
Ferrite Number (WRC, 1992) - 9

TYPICAL WELDING PARAMETERS (CO2) *
Diam. Amps
Volts WFS
(in/min)
ESO
(in.)
Dep. Rate
(lbs/hr)
.045" 180 21 250 1/2-5/8" 7.1
.045" 240 23 400 1/2-5/8" 11.3
.045" 280 25 500 1/2-5/8" 14.1
.045" 300 28 650 1/2-5/8" 18.4
           
1/16" 190 24 150 3/4 - 1" 7.7
1/16" 280 25 250 3/4 - 1" 12.8
1/16" 385 26 350 3/4 - 1" 17.9
1/16" 490 32 450 3/4 - 1" 23.1

* Optimum conditions are in boldface type.

Select-SAI all position electrodes do not contain bismuth.