DESCRIPTION
VHF-300B is a titania type electrode which has stable hardness and good usability. Its weld metal shows sorbite structure and has good toughness. It is suitable for intermetallic abrasion and moderate impact abrasion. Machining and quenching is also possible in general.
APPLICATIONS
Hard surfacing of various wheels, shafts and gears.
INSTRUCTIONS FOR WELDING
1.) Preheating is unnecessary in general. In the case of hard surfacing on large size weldments, low alloy steel and high carbon steel, preheat at 150ºC and over.
2.) The groove repairing is prone to slag inclusion, so adjust the holding angle of the electrode.
3.) Dry the electrodes at 80~120ºC for 30~60 minutes before use.
TYPICAL ANALYSIS OF ALL WELD DEPOSIT:
C |
Si |
Mn |
Cr |
Mo |
Others |
|
|
|
0.07 |
0.25 |
0.18 |
0.70 |
1.02 |
- |
|
|
|
HARDNESS: 23-29 HRC (225-295 Hv)
RECCOMENDED CURRENTS: Ampere (AC/DC+)
Size |
Dia |
3.2 |
4.0 |
5.0 |
(mm) |
Length |
350 |
350 |
350 |
Current Range |
90-130 |
120-180 |
170-230 |
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. |
