Applications
Welding of 50 kgf/mm2 class aluminum-killed steel for low temperature used for offshore constructions, LPG tankers and LPG storage tanks.
Characteristics
N-7016-G is an extra low hydrogen type electrode for all-position welding of aluminum killed steel used at low temperature and provides good usability.
Weld metal is 0.5% Ni Ti-B type, and has better notch toughness at -60°C and CTOD properties at temperature down to -30°C.
Notes on usage
(1) Dry the electrodes at 350-400°C for about one hour before.
(2) Keep the arc as short as possible.
(3) Pay attention not to exceed proper heat-input because excessive heat-input causes deterioration of impact values and yield strength of weld metal.
(4) Typical Chemical Composition of Weld Metal (%):
C |
Si |
Mn |
|
Ni |
0.07 |
0.42 |
1.02 |
|
0.60 |
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) |
570 (83) |
30 |
-46, 110 (-51, 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 |
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. |
