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CLASSIFICATIONS: E120T5-K4C per AWS A5.29, ASME SFA 5.29
Select 125-K4 is a low alloy steel, flux cored, gas-shielded electrode
for single and multiple pass welding of HSLA steels requiring a
minimum of 120 Ksi tensile strength. This electrode is intended
for welding in horizontal fillets and the flat position using 100%
carbon dioxide shielding gas. The arc transfer is globular and the
bead shape is convex.
APPLICATIONS: Select 125-K4 is a good selection for welding
steels such as HY-100 and ASTM A514 and for welding abrasion resistant
steels to HSLA and carbon steels. The low diffusible hydrogen levels
minimize HAZ cracking and facilitate welding these various high
strength materials. These materials are typically found in mining
machinery, cranes and construction equipment.
DIAMETERS: .045", .052", 1/16",
3/32"
SHIELDING GAS: 100% CO2, 35-50 cfh
WELDING POSITIONS: Flat and Horizontal
CHARACTERISTICS:
Low diffusible hydrogen levels.
Tensile strength meets 120 Ksi minimum.
Meets the same requirements as E12018-M covered electrodes.
Highly basic, lime-flouride slag system.
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TYPICAL
MECHANICAL PROPERTIES |
| Ultimate Tensile Strength
(psi) |
132,100 |
| Yield Strength (psi) |
116,000 |
| Percent Elongation |
15 |
| CVN (ft-lb f)
@ -60° F |
33 |
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TYPICAL
DEPOSIT COMPOSITION |
| Wt% |
C |
Mn |
P |
S |
Si |
Ni |
Mo |
Cr |
|
|
.04 |
1.90 |
.010 |
.010 |
.42 |
2.27 |
.60 |
.57 |
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SUGGESTED
WELDING PARAMETERS |
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| Diam. |
Amps |
Volts |
WFS |
Amps |
Volts |
| 3/32" |
400 |
28 |
175 |
350-550 |
26-34 |
| 1/16" |
300 |
29 |
320 |
250-450 |
27-33 |
| .045" |
250 |
28 |
380 |
120-320 |
22-31 |
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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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