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CLASSIFICATIONS: E71T-1M, E71T-9M, E71T-12MJ per AWS A5.20, ASME SFA 5.20

A carbon steel electrode for single and multiple pass welding of carbon and certain low alloy steels, Select 737 is utilized where a minimum of 70,000 psi is required.

APPLICATIONS: The combination of weldability and good mechanical properties make Select 737 a fine choice for general purpose, flux cored welding. Typical applications include structural steel, farm machinery, construction equipment and general carbon steel fabrication.

DIAMETERS: .035", .045", .052", 1/16"

SHIELDING GAS: 75-90% Ar/10-25% CO2, 40 cfh

WELDING POSITIONS: All positions

CHARACTERISTICS:

  • Good arc drive.
  • Very positive, smooth and stable arc transfer.
  • Excellent mechanical properties.
  • Fast freezing slag removes readily and cleanly.
TYPICAL MECHANICAL PROPERTIES
 
75% Ar/ 25% CO2
90% Ar/ 10% CO2
Ultimate Tensile Strength (psi) 84,400 90,300
Yield Strength (psi) 70,000 78,300
Percent Elongation 30 24
CVN (ftlb f) @ -20 ° F 105 88
                  @ -40° F 100 74

TYPICAL DEPOSIT COMPOSITION
Wt% C Mn P S Si
75% Ar/ 25% CO2
.06 1.50 .008 .010 .40
90% Ar/ 10% CO2
.07 1.53 .009 .009 .42

TYPICAL WELDING PARAMETERS (Ar-25% CO2 ) *
  Optimum Range
Diam. Position Amps Volts WFS Amps Volts
1/16" Flat 350 28 350 150-400 22-33
  Overhead 225 25 180 150-310 22-28
  Vertical up 225 24 180 150-280 22-27
.052" Flat 300 27 440 100-330 19-31
  Overhead 200 25 245 150-310 21-28
  Vertical up 200 24 245 150-280 21-27
.045" Flat 250 27 450 100-300 21-31
  Overhead 190 25 305 150-280 21-29
  Vertical up 190 24 305 100-230 21-28
.035" Flat 200 29 600 100-250 21-31
  Overhead 160 25 410 100-175 21-27
  Vertical up 160 24 410 100-175 21-27

* For Ar-10% CO2 reduce the voltage by 1/2 -1 volt.