| Product name：KFX-81TN |
| Classification：A5.29/A5.29M E81T1-Ni1 |
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- KFX-81TN is designed for welding for 590N/mm2 grade steel with 100% CO2 gas.
- It provides superior impact properties at low temperature.
- It also provides stable arc, less spatters, smooth weld beads and good weldability.
- It can be used for single or multi-pass weld with semi-automatic and automatic welding.
- It is ideal for welding ASTM A302, A572A575 and A734 steel.
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Welding Position
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All Positions
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Welding Instruction
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(1) Preheat Temp.: 100±10°C, Interpass Temp.: 150±15°C (Note：Usually no post weld heat treatment needed).
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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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Ni
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Mo
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0.050
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0.33
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1.13
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0.014
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0.008
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1.00
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0.21
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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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620(63)
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560(57)
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27
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-20
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125(12.7)
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-29
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100(11)
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-40
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88(9.2)
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Size and SuggestedOperating Range (DC+)
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Diameter (mm)
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1.2
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1.4
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1.6
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Amp
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F
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120~300
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150~400
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180~450
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H-Fillet
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120~300
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150~350
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180~400
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V-up
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120~200
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150~320
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180~240
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H
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120~280
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150~320
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180~350
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V-down
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200~260
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220~270
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230~280
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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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