Applications
For Aluminum killed steel at low tem (-60 degrees lowest)
Characteristics
N-8018G is an iron powder low hydrogen type electrode, and provides good usability with direct current applications in all-positions.
The weld metal has good crack resistability and X-ray soundness. Also it is suitable for multi-layer fillet welding in large leg length.
Notes on usage
1.) Dry the electrodes at 350°C for about one hour before use.
2.) Adopt the back step method or strike the arc on a small steel plate prepared for this particular purpose to prevent the blowholes at the arc starting.
3.) Keep the arc as short as possible.
Typical Chemical Composition of Weld Metal (%):
C |
Si |
Mn |
|
Ni |
0.07 |
0.45 |
1.04 |
|
0.62 |
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) |
490 (71) |
560 (81) |
31 |
-46, 120 (-51, 89) |
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 |
Flat |
55-85 |
90-130 |
130-180 |
180-240 |
V & OH |
50-80 |
90-115 |
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. |
