Applications:
Horizontal fillet welding, flat fillet welding, flat butt welding and surface dressing of multi layer welds.
Characteristics on usage:
N-7024 is an iron powder high titania types electrode which is designed for the purpose of obtaining high efficiency in single pass horizontal and flat welding. Its slag covering is uniform, arc is stable, spatter loss is low, its slag detachability is extremely good, its weld metal is lustrous and good in appearance, and its usability is good.
As its deposition efficiency and deposition rate are high, extremely high working efficiency can be obtained.
Notes on usage:
(1) Adjust the welding current to keep the proper slag covering, because optimum welding current is subject to the welding process and the surface condition of steel plat.
(2) In the case of horizontal fillet welding, keep the optimum speed ratio among 1.0-1.5.
(3) Dry the electrodes at 7-100oC for 30-60 minutes before use, because excessive moisture absorption causes undercut and irregular beads.
Typical Chemical Composition of Weld Metal (%):
C |
Si |
Mn |
P |
S |
0.08 |
0.40 |
0.72 |
0.020 |
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) |
540 (78) |
600 (87) |
30 |
-46,60 (-51,44) |
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 |
|
70-100 |
130-180 |
180-220 |
240-290 |
|
|
|
|
|
Welding Positions:
HORIZONTAL AND FLAT
Approvals:
ABS, BV, DNV, LRS
Packing:
20 Kg corrugated box, with 4 units of 5 Kg shrinked plastic wrapped paper boxes inside.
Special requests on packing are accepted. |
