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JIS D5003
AWS E7024

Description and Applications
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.
 
Guideline in Usage
1. Dry the electrodes at 70~120℃ for one hour before use.
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.

   
 
Typical Chemical Composition of Weld Metal(%)
C Si Mn P S
0.07 0.23 0.68 0.019 0.011
 
Typical Mechanical Properties of Weld Metal
Yield Strength
N/mm2
Tensile Strength
N/mm2
Elongation
Impact Value
J(0℃)
470 550 30 86
 
Size & Recommended Current RangeAC )
Diameter (mm)
2.6 3.2 4.0 5.0
Length (mm) 
300

350

400 450
Current (Amp) F 80~100 100~140 160~220 200~260
V,OH 70~90 90~130 140~180 160~200