| Product name：KL-718A1 |
| Classification：A5.5 / E7018-A1 |
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- KL-718A1 is suitable for welding 490N/mm2 grade steel with 0.5% Mo.
- It provides high deposition rate and good weldability.
- It is ideal for welding high temperature/pressure steel pipes, heat exchanger steel pipes, rolled steel and forged steel.
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Welding Position
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All Positions
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Welding Instruction
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(1) Clean up the contaminations on the steel.
(2) Dry the electrodes at 350~400°C for 60 minutes before welding.
(3) Keep arc as short as possible. Take the back step method to prevent porosity at arc start and re-start. (Please refer to Appendix A).
(4) Preheat and interpass temperature:100~200°C, PWHT:600~635°C.
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TypicalChemical Composition of Weld Metal (wt %)
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C
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Si
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Mn
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P
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S
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Mo
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0.080
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0.54
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0.78
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0.012
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0.011
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0.56
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TypicalMechanical Properties of Weld Metal(PWHT:620°Cx1Hr)
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Tensile Strength
N/mm2(kgf/mm2)
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Yield Strength
N/mm2(kgf/mm2)
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Elongation
%
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Charpy V-Notch
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°C
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J (kgf -m)
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570(58.1)
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490(50.0)
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31
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0
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—
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-29
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Size and SuggestedOperating Range (AC or DC+)
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Diameter (mm) x Length(mm)
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3.2x350
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4.0x400
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5.0x400
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Amp
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F
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90~140
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140~190
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180~240
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V-up/OH
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80~120
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120~160
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No.8, Luke 3rd Rd., Luzhu Dist., Kaohsiung City 821, Taiwan (R.O.C.) TEL:886-7-6955155 FAX:886-7-6955166
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