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CHE425G (Cellulose Electrode For Vertical-down Welding Mild Steel)

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CHE425G

Cellulose Electrode For Vertical-down Welding Mild Steel

CHE425G is a high cellulose sodium type electrode.The electrodes show a very good performance in welding of all positions amd vertical down, overhead. It forms on double sides by one side welding.It is suitable for weldin root passes, filler and cover passes as well as for capping of general pipes and similar structures.Keeping the electrode in dry condition.The electrodes do not be redried befor welding. In welding small current is recommended and swaying broad should be less than 2.5 times of diameter of the steel core of electrode.

Chemical Composition of Deposited Metal (%)

 
C
Mn
Si
S
P
Standard
 
 
 
≤0.035
≤0.040
Typical
0.077
0.36
0.10
0.008
0.011

Mechanical Properties of Deposited Metal

 

Yield Point

бs(MPa)

Tensile Strength

бb(MPa)

Elongation

δ5(%)

Impact Value(J)
-30℃
Standard
≥330
≥420
≥22
≥27
Typical
385
490
33
90

Sizes, pieces & Recommended Current(AC or DC)

Size(mm)
2.5×300
3.2×350
4.0×350
5.0×350
Pieces(5kg)
≈355
≈192
≈124
≈78
Current(A)
F,H
60-90
70-110
110-150
150-200
OH,VD
50-80
60-100
100-140
140-180


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