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CLASSIFICATIONS: E70T-1C, T-1M per AWS A5.20, ASME SFA 5.20
APPROVALS: ABS 3YSA ( CO2 and 92% Ar - 8% CO2), MIL 70T-1C
per MIL-E-24403/1
Select 71P is a gas-shielded, flux cored electrode intended to weld
over primers used in the shipbuilding industry. This electrode is
multiple pass, for use in the flat position and horizontal fillets.
The preferred shielding gas is carbon dioxide, but mixtures up to
92% argon - 8% carbon dioxide may be used.
APPLICATIONS: Select 71P is specially formulated to weld
over zinc-based and organic primers in the shipbuilding industry.
The slag system and deoxidizers provide excellent resistance to
the pitting which occurs when welding over primers used in shipbuilding,
barge construction and offshore drilling platform fabrication. This
electrode offers good welding performance, along with
ease of slag removal and low spatter.
DIAMETERS: .045", .052", 1/16"
SHIELDING GAS: 100% CO2 through 92% Ar - 8% CO2, 35-50 cfh
WELDING POSITIONS: Flat and Horizontal
CHARACTERISTICS:
Smooth arc transfer with low spatter.
Porosity-free welds possible on primer coated steels.
Good mechanical properties.
Easy slag removal.
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TYPICAL
MECHANICAL PROPERTIES
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| |
CO2
|
92% Ar/ 8% CO2
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| Ultimate Tensile Strength (psi) |
86,700 |
89,100 |
| Yield Strength (psi) |
73,400 |
76,300 |
| Percent Elongation |
22 |
23 |
| CVN (ft-lb f) @ 0° F |
44 |
49 |
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TYPICAL DEPOSIT COMPOSITION
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| Wt% |
C |
Mn |
P |
S |
Si |
|
CO2
|
.04 |
1.40 |
.008 |
.007 |
.49 |
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92 Ar/8 CO2
|
.04 |
1.58 |
.008 |
.007 |
.75 |
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RECOMMENDED WELDING PARAMETERS - CO2 Shielding Gas * |
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| Diam. |
Amps
(DCEP) |
Volts |
ESO |
Amps |
Volts |
WFS |
| .045" |
130-300 |
21-32 |
1/2-1" |
250 |
28 |
450 |
| .052" |
140-330 |
21-32 |
1/2-1" |
275 |
28 |
400 |
| 1/16" |
150-400 |
22-34 |
1/2-1" |
330 |
29 |
330 |
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* For 92% Ar- 8% CO2 reduce voltage by 1-2 volts.
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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