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CLASSIFICATIONS: E70T-1C, E70T-1M, E70T-9C, E70T-9M per AWS A5.20, ASME SFA 5.20

Select 70TR is intended for the single and multiple pass welding of carbon and certain low alloy steels in the flat and horizontal fillet positions. This E70T-1C electrode has a unique slag system which allows multiple weld beads to be stacked in a horizontal fillet with a minimum of "roll" or convexity.

APPLICATIONS: The bead geometry of Select 70TR is much flatter, with minimal roll, or better tie-in, at the toe of the fillet. Also, it is much easier to "stack" weld beads with Select 70TR when building up large horizontal fillets. The welding of structural carbon steels, where high deposition rates and superior penetration characteristics are preferred, is well suited for Select 70TR. It is an ideal choice for welding steels such as A36, A285, A515 and A516.

DIAMETERS: .045", 1/16", 5/64", 3/32"

SHIELDING GAS: 100% CO2, 75-80% Ar/balance CO2, 35-50 cfh

WELDING POSITIONS: Flat and Horizontal

CHARACTERISTICS:

  • Superior bead geometry delivers flat profile and minimizes "double beading".
  • Extremely high welder appeal.
  • Low spatter and easily removed slag.
  • High deoxidation level facilitates welding over mill scale and rust.
TYPICAL MECHANICAL PROPERTIES
 
CO2
75% Ar/
25% CO2
Ultimate Tensile Strength (psi) 88,700 94,100
Yield Strength (psi) 74,400 81,100
Percent Elongation 24 24
                  @ -20° F 31 30

TYPICAL DEPOSIT COMPOSITION
Wt% C Mn P S Si
CO2
.06 1.56 .006 .010 .58
75 Ar/25 CO2
.06 1.68 .007 .009 .70

RECOMMENDED WELDING PARAMETERS
Operating Range Optimum
Diam. Amps
(DCEP)
Volts WFS
(in/min)
ESO Amps Volts WFS
3/32" 300-550 26-34 110-270 3/4-1 1 1/4" 425 29 180
5/64" 280-430 26-33 140-300 3/4-1 1/4" 390 29 250
1/16" 150-400 24-34 130-500 1/2-1" 330 29 330
.045" 130-300 21-32 175-570 1/2-1" 250 28 450