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CLASSIFICATION: E307T0-3 per AWS A5.22

SelectAlloy 307T0-3 is a self-shielded, flux cored, stainless steel electrode designed with a nominal weld metal composition of less than 20.5% chromium, 10% nickel, 4% manganese and 1% molybdenum. The relatively high manganese content helps reduce the chances of weld metal cracking in dissimilar metal welding.

APPLICATIONS: Primarily used to weld armor plate, SelectAlloy 307T0-3 is also utilized to join carbon and low alloy steels to austenitic stainless steels and for the cladding of carbon steels.

DIAMETERS: .035", .045", 1/16", 3/32"

SHIELDING GASES: Self-shielded

WELDING POSITIONS: Flat and Horizontal

CHARACTERISTICS:

  • Ideal for surfacing or welding over gaps.
  • Arc transfer is globular with low spatter.
  • Produces a well washed bead.
TYPICAL DEPOSIT COMPOSITION
Wt% C Mn Si Ni Cr Mo N *
.10 4.20 .70 9.80 20.70 1.10 .10
Ferrite Number (WRC, 1992) - 4

* The nitrogen levels in self-shielded stainless steel deposits can vary widely depending on the welding parameters used. Since nitrogen has a strong effect on the ferrite level (increasing nitrogen lowers the ferrite number), careful control of parameters is necessary to maintain ferrite levels.

TYPICAL WELDING PARAMETERS (DCEP)
Diam. Amps
Volts WFS
(in/min)
ESO
(in.)
.035" 110 25 300 5/8-3/4"
  150 26 500 5/8-3/4"
  165 27 600 5/8-3/4"
  175 28 700 5/8-3/4"
.045" 100 24-26 180 5/8-3/4"
  125 24-27 240 5/8-3/4"
  145 25-28 300 5/8-3/4"
  170 27-30 400 5/8-3/4"
  190 29-31 500 5/8-3/4"
1/16" 125 27-30 150 3/4-1"
  155 29-32 200 3/4-1"
  190 28-31 250 3/4-1"
  215 30-33 300 3/4-1"
  240 31-33 350 3/4-1"
3/32" 250 25-27 135 1 1/4-1 1/2"
  300 27-29 180 1 1/4-1 1/2"
  350 28-30 225 1 1/4-1 1/2"
  400 29-31 300 1 1/4-1 1/2"
  450 29-31 340 1 1/4-1 1/2"

Select-SAI all position electrodes do not contain bismuth.