DESCRIPTION
VC-25 is a graphite type electrode using mild steel core rod. Its weld metal shows high carbon content. Then it results high hardness, so it is suitable for welding the parts where machining is unnecessary. Its fusibility with case iron is excellent.
APPLICATIONS
For repairing of cast iron parts where machining is unnecessary.
INSTRUCTIONS FOR WELDING
The preheat temperatures vary in accordance with kind, shape and size of base metal. Preheating over 200ºC is appropriate to prevent cracking. Slow cooling is recommended after welding.
TYPICAL ANALYSIS OF ALL WELD DEPOSIT:
C |
Si |
Mn |
Fe |
Ni |
|
|
|
|
0.92 |
0.11 |
0.36 |
Bal |
- |
|
|
|
|
TYPICAL MECHANICAL PROPERTIES OF ALL WELD DEPOSIT:
Tensile Strength
N/mm2 (Ksi) |
Elongation
(%) |
Hardness
Hv (HRC) |
497 (72) |
22 |
350-390 (35-40) |
RECCOMENDED CURRENTS: Ampere (AC/DC+)
Size |
Dia |
3.2 |
4.0 |
5.0 |
(mm) |
Length |
350 |
350 |
350 |
Current Range |
90-120 |
110-150 |
140-180 |
WELDING POSITIONS:
FLAT, FILLET, VERTICAL UP, HORIZONTAL, OVERHEAD
EXPORT Packing: 5Kg plastic container, then 4 5kg containers in master carton box
LOCAL Packing: 5Kg paper box in shrink wrapped plastic
Other special packaging can be accommodated as per request. |
