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CLASSIFICATIONS: E70T-1C per AWS A5.20, ASME SFA 5.20
Select 79 is an E70T-1C electrode with a unique slag system which
allows multiple weld beads to be stacked in a horizontal fillet
with a minimum of “roll” or convexity. A carbon steel
electrode
intended for single and multiple pass welding in flat and horizontal
fillet positions, Select 79 is designed for use with carbon dioxide
gas shielding.
APPLICATIONS: Select 79 excels when “stacking” or building fillets up on fairly thick carbon steels, such as in
mining and earthmoving equipment, large machine bases and other
heavy component fabrications. Typical steels used in these applications
are ASTM A36, A515 and A516.
DIAMETERS: 1/16", 5/64", 3/32"
SHIELDING GAS: 100% CO2, 35-50 cfh
WELDING POSITIONS: Flat and Horizontal
CHARACTERISTICS:
Excellent weld bead geometry.
Arc transfer is a smooth globular spray with low spatter.
Deoxidation level permits use with moderate mill scale.
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TYPICAL
MECHANICAL PROPERTIES
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| Ultimate Tensile Strength (psi) |
85,700 |
| Yield Strength (psi) |
77,500 |
| Percent Elongation |
26 |
| CVN (ft-lb f) @ 0° F |
29 |
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TYPICAL
DEPOSIT COMPOSITION *
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| Wt% |
C |
Mn |
P |
S |
Si |
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.05 |
1.25 |
.010 |
.010 |
.75 |
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* Welded and tested in accordance with A5.20
RECOMMENDED WELDING PARAMETERS:
Flux Cored - Flat and Horizontal |
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| Diam. |
Amps
(DCEP) |
Volts |
WFS
(in/min) |
ESO |
Amps |
Volts |
WFS |
| 3/32" |
275-550 |
26/34 |
120-270 |
1" |
425 |
29 |
180 |
| 5/64" |
280-430 |
26/33 |
140-300 |
1±1/4" |
390 |
29 |
250 |
| 1/16" |
250-400 |
26/32 |
220-410 |
1" |
350 |
29 |
350 |
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Notice: The results reported are based upon testing of the product under controlled laboratory conditions in accordance with American Welding Society Standards. Actual use of the product may produce different results due to varying conditions. An example of such conditions would be electrode size, plate chemistry, environment, weldment design, fabrication methods, welding procedure and service requirements. Thus the results are not guarantees for use in the field. The manufacturer disclaims any warranty of merchantability or fitness for any particular purpose with respect to its products.
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