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CLASSIFICATIONS: E70T-1C, E70T-9C per AWS A5.20, ASME SFA 5.20
APPROVAL: ABS E70T-1
Select 71 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 71 is designed for use with carbon dioxide gas shielding.
APPLICATIONS: Select 71 has all the good attributes of Select
70, with a tremendous
improvement in bead profile. The bead geometry of Select 71 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 71 when building up large horizontal fillets.
This is an excellent
electrode for welding plates such as ASTM A36, A285, A515 and A516,
as found in the
fabrication of earthmoving equipment, mining machinery, structural
steel and railcar
fabrication.
DIAMETERS: 1/16", 5/64", 3/32", 7/64",
1/8"
SHIELDING GAS: 100% CO2, 35-50 cfh
WELDING POSITIONS: Flat and Horizontal
CHARACTERISTICS:
- Extremely smooth welding arc over a broad range of amperage and voltage.
- Quite low spatter.
- Slag removes very easily.
- Exacting slag characteristics facilitate a flat bead profile and stacking in multipass fillets.
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TYPICAL
MECHANICAL PROPERTIES
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| Ultimate Tensile Strength (psi) |
88,600 |
| Yield Strength (psi) |
73,000 |
| Percent Elongation |
24 |
| CVN (ft-lb f) @ 0° F |
34 |
| @ -20° F |
29 |
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TYPICAL
DEPOSIT COMPOSITION
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| Wt% |
C |
Mn |
P |
S |
Si |
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.06 |
1.56 |
.006 |
.010 |
.58 |
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RECOMMENDED WELDING PARAMETER |
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| Diam. |
Amps
(DCEP) |
Volts |
WFS
(in/min) |
ESO |
Amps |
Volts |
WFS |
| 1/8" |
375-725 |
28/37 |
65-175 |
1±1/4" |
500 |
29 |
110 |
| 7/64" |
350-700 |
27/36 |
80-250 |
1±1/4" |
475 |
29 |
140 |
| 3/32" |
300-550 |
26/34 |
110-270 |
3/4-1" |
425 |
29 |
180 |
| 5/64" |
280-430 |
26/33 |
140-300 |
3/4-1" |
390 |
29 |
250 |
| 1/16" |
150-400 |
24/34 |
130-500 |
1/2-1" |
330 |
29 |
330 |
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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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