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CLASSIFICATIONS: E80T1-A1C per AWS A5.29, ASME SFA 5.29
Select 81-A1 is a low alloy steel electrode intended for single
and multiple pass welding of certain carbon-molybdenum steels where
the addition of 1/2 percent of molybdenum is required in the deposited
weld metal.
APPLICATIONS: Select 81-A1 is well-suited for welding certain
C-MO steels used in the fabrication of boilers and pressure vessels
such as ASTM A161, A204 and A302 Gr. A plate.
DIAMETERS: 1/16", 3/32"
SHIELDING GAS: 100% CO2, 35-50 cfh
WELDING POSITIONS: Flat and Horizontal
CHARACTERISTICS:
Spray-like arc transfer with very low spatter.
Exhibits minimum of convexity.
Complete slag coverage with easy detachment.
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TYPICAL
MECHANICAL PROPERTIES |
| |
SR 1 Hr. at 1150° F |
| Ultimate Tensile Strength
(psi) |
90,300 |
| Yield Strength (psi) |
79,600 |
| Percent Elongation |
24.5 |
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TYPICAL
DEPOSIT COMPOSITION |
| Wt% |
C |
Mn |
P |
S |
Si |
Mo |
|
|
.03 |
.65 |
.010 |
.010 |
.45 |
.58 |
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RECOMMENDED
WELDING PARAMETERS |
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| Diam. |
Amps
|
Volts |
WFS
|
Amps |
Volts |
| 1/16" |
350 |
29 |
300 |
150-400 |
22-34 |
| 5/64" |
390 |
29 |
250 |
280-430 |
26-33 |
| 3/32" |
450 |
31 |
210 |
275-550 |
26-34 |
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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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