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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