JIS FC NiFe
AWS ENiFe-CI

Description and Applications

HC55 is a graphite type electrode for repairing various cast iron products.  Ability to weld is excellent, the beaded appearance is beautiful, and slag is easily detached. As the coefficient of thermal expansion of the weld metal is about the same as that of cast iron, weld metal is easily machined, and the mechanical properties and crack resistibility of the weld metal are good.

 

Guideline in Usage

1. Remove dirt from the weld metal.
2. Deposit short run and give hot peening at each bead.
3. The length of one bead should be about 50 mm maximum to prevent overheating, distortion and cracking. Stringer welding is recommended.
4. Electrode should be re-dried at 80∼120℃ for 60 minutes before use.
 
Typical Chemical Composition of Weld Metal(%)
C Si Mn P S Ni Fe
1.13 0.890 0.602 0.008 0.004 54 bal
 
Typical Mechanical Properties of Weld Metal
Tensile Strength
N/mm2
HV
490 180
 
Size & Recommended Current RangeAC OR DC+
Diameter (mm)
2.6 3.2 4.0
Length (mm) 
300

350

400
Current (Amp) F 60~90 90~130 110~160