JIS D4327
AWS E6027

Description and Applications
H27 is a high iron oxide powder type electrode, which designed for flat and horizontal fillet welding. It is used in a wide range of bead length/burned up electrode length ratio. It assures a beautiful bead with equal leg length but without undercuts. High welding efficiency is obtained when it is used in a combination with a gravity welder. Suitable for welding of ships, bridges, buildings and mechanical structures.
 
Guideline in Usage
1.

Electrodes should be re-dried at 70120℃ for one hour before use.

2. Optimum welding current differs depending on plate thickness, surface conditions, and bead length/burned up electrode length ratio. It is necessary, therefore, to observe slag movement and adjust the current.
3. Optimum bead length/burned up electrode length ratio is 0.8∼1.5 for manual welding, 1.0∼1.5 for gravity welding.
 
 
Typical Chemical Composition of Weld Metal(%)
C Si Mn P S
0.06 0.24 0.47 0.015 0.012
 
Typical Mechanical Properties of Weld Metal
Yield Strength
N/mm2
Tensile Strength
N/mm2
Elongation
Impact Value
J(0℃)
430 490 29 70
 
Size & Recommended Current RangeAC
Diameter (mm)
4.0 4.5 5.0 5.5 6.0 6.4 7.0 8.0
Length (mm) 
550

550

550
700
550
700
550
700
550
700
550
700
550
700
Current (Amp) F
FIL
140~
180
170~
210
180~
230
210~
260
240~
290
260~
310
280~
330
320~
380