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. Keep arc as short as possible.
(2) Dry the electrodes 350~400°C in 60 minutes before welding.
(3) Excellent strike and re-strike capabilities with the back step method. (Please refer to Appendix A)
(4) Please note that over welding heat input causes the poor conditions in CVN.
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TypicalChemical Composition of Weld Metal (wt %)
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C
|
Si
|
Mn
|
P
|
S
|
Ni
|
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0.080
|
0.18
|
1.14
|
0.012
|
0.010
|
1.60
|
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TypicalMechanical Properties of Weld Metal (PWHT:745°Cx1Hr)
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Tensile Strength
N/mm2(kgf/mm2)
|
Yield Strength
N/mm2(kgf/mm2)
|
Elongation
%
|
Charpy V-Notch
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°C
|
J (kgf -m)
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550(56.1)
|
460(46.9)
|
34
|
0
|
—
|
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-45
|
98(10.0)
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Size and SuggestedOperating Range (AC or DC+)
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Diameter (mm) x Length(mm)
|
3.2x350
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4.0x400
|
5.0x400
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Amp
|
F
|
100~140
|
140~180
|
180~230
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V-up/OH
|
90~130
|
120~160
|
—
|