APPLICATIONS:
One side shieled metal arc welding for pipes and general butt joints of mild steel and 490 N/mm2 high tensile steel.
CHARACTERISTICS:
V-7016U is a low hydrogen type covered electrode for exclusive use for one-side welding of pipes and general structures. It’s arc stability is extremely good to perform one-sde welding with relatively low currents.
NOTES ON USAGE:
(1) Dry the electrodes at 300-350 degrees C for 30-60 minutes before use
(2) Reverse side bead with good appearance is obtained with proper current and optimum root gap.
(3) Cut off the arc after setting the crater to the side wll of the groove to avoid crater cracks.
(4) Strike the arc on a small steel plate to prevent blowholes at the arc starting
(5) Keep the arc length as short as possible.
Typical Chemical Composition of Weld Metal (%):
C |
Si |
Mn |
P |
S |
0.08 |
0.61 |
0.88 |
0.013 |
0.010 |
Typical Mechanical Properties of Weld Metal:
Yield Point
N/mm2 (Kgf/mm2) |
Tensile Strength
N/mm2 (Ksi) |
Elongation
(%) |
Impact Value
Deg C, J (Deg F, Ft-lbs) |
470 (68) |
560 (81) |
31 |
-29,110 (-20,81) |
Size and Recommended Current Range (AC or DC +):
Diameter (mm) |
2.5 |
3.2 |
4.0 |
5.0 |
Length (mm) |
350 |
350 |
400 |
400 |
Ampere |
One side |
30-80 |
60-110 |
90-140 |
130-180 |
Flat |
60-90 |
90-130 |
130-180 |
180-240 |
V & OH |
50-80 |
80-120 |
110-170 |
150-200 |
Welding Positions:
ALL POSITIONS
Packing:
20 Kg corrugated box, with 4 units of 5 Kg shrinked plastic wrapped paper boxes inside.
Special requests on packing are accepted |
