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Description and Applications |
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HE7024 is a
lime Titania type covered electrodes contained iron
powder. As it has excellent re-striking property and
detachability, it is suitable for welding medium plate
for ships, vehicles, structures and steel constructions
or 500 N/mm²class high tensile steel. |
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Guideline in Usage |
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1. |
Dry the electrodes at 70~120℃ for one hour
before use. |
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2. |
Pay
attention not to exceed the range of proper
currents and weaving motion.
Welding
with excessive current lowers X-ray performance.
The width of weaving motion should be limited
within 2.5 times electrode diameter when it is
necessary. |
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Typical
Chemical Composition of Weld Metal（％） |
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C |
Si |
Mn |
P |
S |
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0.07 |
0.23 |
0.68 |
0.019 |
0.011 |
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Typical Mechanical Properties of Weld Metal |
Yield Strength
N/mm2 |
Tensile Strength
N/mm2 |
Elongation
％ |
Impact Value
J(0℃) |
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470 |
550 |
30 |
86 |
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Size & Recommended Current Range（AC
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2.6 |
3.2 |
4.0 |
5.0 |
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300 |
350 |
400 |
450 |
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Current (Amp) |
F |
80~100 |
100~140 |
160~220 |
200~260 |
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V,OH |
70~90 |
90~130 |
140~180 |
160~200 |
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