| Product name：KAC-818W |
| Classification：A5.5 / E8018-W2 |
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- It is suitable for 540N/mm2 grade weather resistant steel.
- It provides good weldability, mechanical properties, X-ray quality welds and crack resistance.
- Weld metal has great weather resistance due to Cu, Ni and Cr contents.
- It is ideal for welding in ASTM A588, A242, JIS G3114 SAM steel and bare steel structures.
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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 before welding.
(2) Dry the electrodes at 300~350°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) The preheat temperature for thick plate (thickness > 25mm) or rigid joints is 90~120°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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Cu
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Cr
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Ni
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0.060
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0.54
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0.84
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0.014
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0.009
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0.48
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0.52
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0.61
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TypicalMechanical Properties of Weld Metal
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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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630(64.2)
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550(56.1)
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27
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-5
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104(10.6)
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-18
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95(9.7)
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Size and SuggestedOperating Range (AC or DC+)
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Diameter (mm) x Length(mm)
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2.6x300
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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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H
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70~100
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110~150
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160~200
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180~230
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V-up/OH
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60~90
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90~130
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130~170
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140~180
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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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