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High Tensile Steel Electrodes - Premier 7018- 1 |
Characteristics : PREMIER 7018-1 is a heavy coated, all position, low hydrogen type electrode
which gives extremely smooth arc, medium penetration, least spatter with an easily removable
slag. Deposition efficiency is about 115%. Electrode is specially designed for high impact values at sub-zero temperatures. It can also be used on mild steel applications where the structures have to withstand sub-zero temperatures. It is recommended to use minimum possible heat input while welding. |
Applications : Structural steels, Low alloy steels, Low temperature steels, High carbon steels, Rails, Wagons, Bridges, Boilers, Pressure vessels, Tanks, Ship-building, Cranes, Machine building, for joining seals, speed rings and spiral casings of turbines, joining alloy steels such as Si-Mn, heat treated steels containing Ni. upto 1.0%. For heavy joints under restraint and subject to dynamic loading.
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Typical Weldmetal Composition
Element |
Percent |
C |
0.075 |
Si |
0.48 |
Mn |
1.39 |
S |
0.015 |
P |
0.019 |
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Typical Mechanical Properties of all weld Metal
Ultimate Tensile Strength Kg/mm2 |
Yield Strength Kg/mm2 |
Elongation % (L=5d) |
CVN Impact Strength at -450C.Kgm |
60 |
52 |
29 |
6.8 |
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Classifications :
AWS A5.1 : |
E 7018-1 |
SFA 5.1 : |
E-7018-1 |
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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 |
3.25x450 |
100-140 |
100 |
400 |
2.50x350 |
60-100 |
150 |
600 |
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Storage :
Storage of sealed electrodes at 32˚ C at 50% RH.
Holding oven temperature 200˚C.
Redrying 250˚ for 2 hours. |
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