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ELECTRODES
LOW HYDROGEN ELECTRODES
PREMIER - 7018
LOW HYDROGEN ELECTRODES - PREMIER - 7018
CHARACTERISTICS :
PREMIER-7018 is a heavy coated, all position, low hydrogen type electrode,
designed for welding of structural steels, high strength low-alloy steels,
boiler plates and also low temperature steels. It permits crack resistant
welding of high carbon steels. It produces high purity, radiographic quality
weld deposits with excellent non-ageing properties. Deposition efficiency is
about 115%.
APPLICATIONS :
Structural steels, Low alloy steels, Low temperature steels, High carbon steels,
Rails, Wagons, Bridges, Boilers, Pressure vessels, Tanks, Ship-building, Cranes,
Machine building etc. involving joining of dissimilar steels and welding of
heavy mild steel sections. Specially recommended for heavy joints under
restraint and subject to dynamic loading.
TYPICAL WELDMETAL COMPOSITION
|
Element |
Percent |
|
C |
0.063 |
|
Si |
0.68 |
|
Mn |
0.95 |
|
S |
0.019 |
|
P |
0.020 |
TYPICAL MECHANICAL PROPERTIES OF ALL WELD METAL:
|
Ultimate Tensile
Strength
Kg/mm2 |
Yield Strength
Kg/mm2 |
Elongation
% (L=5d) |
CVN Impact
Strength at –
20OC Kgm
|
|
61 |
51 |
28 |
8.5 |
CLASSIFICATION :
AWS A5.1 :E 7018
IS : EB 5226 H 3 JX
DIN 1913 : E 5226 B 10 120
BS 639 : E 5226 B 120 24 (H)
CURRENT RANGE & PACKING DATA:
|
Size MM
DxL |
Current
Range (Amps)
AC (70V)or DC (+) |
Pieces per
Packet |
Pieces per
Carton |
|
6.30x450 |
240-320 |
25 |
100 |
|
5.00x450 |
190-240 |
40 |
160 |
|
4.00x450 |
140-190 |
70 |
280 |
|
3.15x450 |
100-140 |
100 |
400 |
|
2.50x350 |
60-100 |
150 |
600 |
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