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CLASSIFICATIONS: E70T-1C, E70T-9C per AWS A5.20, SFA 5.20.
Select 70TR is a carbon steel electrode for flux cored arc welding with external gas shielding. It is intended for single and multiple pass welding of carbon, and certain low alloy, steels in the flat and horizontal fillet positions. This electrode is designed for use with carbon dioxide shielding gas and a blend of 75-80% argon/balance carbon dioxide. Gas flow rates should be maintained at 35-50 cfh. Dew point of the gas must be at least -40° F.
APPLICATIONS: Select 70TR is ideal for those applications involving the welding of structural carbon steels, where high deposition rates and superior penetration characteristics are preferred. The bead geometry is superior to most conventional E70T-1C electrodes, with a flat profile and minimal double beading. Select 70TR is an ideal choice for welding steels such as A36, A285, A515, and A516.
CHARACTERISTICS: Select 70TR is a general purpose E70T-1C electrode with extremely high welder appeal. This wire has excellent wetting characteristics, resulting in a superior bead shape and near seamless tie-in on multipass welds. Spatter levels are low and the slag removes easily. The high level of deoxidation facilitates welding over mill scale, rust, and other mild contaminants on the plate.
Select 70TR exhibits a stable arc transfer over a broad amperage range, performing well at both the high and low ends of the range. New manufacturing technology ensures the finest in quality, consistency, and welding performance in the entire flux cored industry.
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TYPICAL
MECHANICAL PROPERTIES
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| |
CO2
|
75% Ar/
25%
CO2
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| Ultimate Tensile Strength (psi) |
88,700 |
100,900 |
| Yield Strength (psi) |
74,400 |
90,500 |
| Percent Elongation |
24.0 |
23.0 |
| CVN (ft-lb f) @ 0° F |
35 |
37 |
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@ -20° F |
31 |
36 |
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TYPICAL
DEPOSIT COMPOSITION
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| Wt% |
C |
Mn |
P |
S |
Si |
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CO2
|
.06 |
1.56 |
.006 |
.010 |
.58 |
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75 Ar/25
CO2
|
.06 |
1.68 |
.007 |
.009 |
.70 |
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RECOMMENDED WELDING PARAMETERS
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| 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" |
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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