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Description?G
The C-78
is iron poweer low hydrogen type electrode for all
position welding . The outstanding characteristic of
this electrode provide superior puddle control in all
position. Slag is removed naturally with ease.
Application?G
The C-78 is designed for
welding sulphur steels, carbon steels and low alloy
steels. Application include ship building, barge
construction, mining earture weldments and code
applicstions.
Typical weld
metal properties?G (Weld Metal Analysis)
Carbon
?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K 0.07
Manganese ?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K. 1.15
Silicon ?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K
0.53
Phosphorus ?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K.
0.016
Sulphur ?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K..
0.010
Mechanical
properties:
Tensile
Strength (Kg/mm2) ?K?K?K?K?K?K?K?K?K?K?K?K.. 53.0 ~ 60.0
Yield Point (Kg/mm2) ?K?K?K?K?K?K?K?K?K?K?K?K?K?K...43.0
~ 50.0
Elongation (%) ?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K?K. 28.0
~ 32.0
Reduction of Area (%) ?K?K?K?K?K?K?K?K?K?K?K?K?K?K..
65.0 ~ 72.0
Charpy V-Notch Impact Values(-29?J)
?K?K?K?K?K?K?K?K?K14.7 Kg-M
Available diameter and recommended operating ranges?G
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| ?@ |
F.
& H. ?V fillet |
V.
& O.H. |
2.6 X300 m/m
3.2 X350 m/m
4.0 X400 m/m
5.0 X450 m/m
6.0 X450 m/m |
70 ~
100 Amps
100 ~ 140 Amps
150 ~ 200 Amps
180 ~ 300 Amps
280 ~ 330 Amps |
60 ~ 90 Amps
85 ~ 120 Amps
110 ~ 170 Amps |
Type
of power?G A.C. D.C.E.P. or D.C.E.N.
Approvals?G
⃞ ABS AWS A5.1-91 E7018
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