WELD METAL-CAST 55 is an electrode specially for the repair and maintenance work of cast iron. The deposit remains ductile, soft, and easily machinable, and it retains adequate strength. Suitable for joining and repair of ferric and pearlitic high-strength spheroidical graphite-type cast irons. Also used to cast iron into steel.
APPLICATIONS
WELD METAL-CAST 55 welding of all types of cast iron and steels, joining of cast iron to steels, filling the deep cavities in castings, it can be used on high sulfur and high phosphorous castings.
CHEMICAL ANALYSIS OF ALL WELD METAL
C%
Si%
Ni%
Fe%
0.08-1.50
0.9 max
55-60
40-45
MECHANICAL PROPERTIES OF ALL WELD METAL
HARDNESS
220 BHN max
CURRENT & CONDITIONS : USE AC 50 (OCR) OR DC (+)
SIZE (mm)
2.50x350
3.15x350
4.00x350
5.00x350
Amps
40-70
70-100
100-130
130-170
RECOMMENDATIONS
Use low-current, smallest-possible-size electrodes and lay small beads to avoid overheating. Peen the weld beads to reduce welding stress. Cooling the welded piece slowly under the insulation. For the best result, preheat the job to 300°C.
