Description¡G
CH-800V is
an electrode which is air-harden able as it contains
carbide forming elements such as Cr, Mo, W and V etc. It
is designed for sharpness and durability of molds.
Application¡G
Hard surfacing of piercing
form, dies and shears.
Instructions for welding :
-
Preheating at more
than 150¢J is required.
-
It is recommended to
under lay with low hydrogen type electrodes (C-76),
in case the base metal is very harden able or
multi-layer welding is required.
-
Slow cooling is
desirable after welding to avoid cracking.
-
Dry the electrodes
before use, at 300 ~ 350¢J for 60 minutes.
¡@
Typical weld
metal properties¡G (Weld Metal Analysis)
Carbon
¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K 0.75
Manganese ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K 0.82
Silicon ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K 0.65
Chromium ¡K¡K¡K¡K¡K¡K¡K..¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K.¡K¡K¡K 5.10
Molybdenum ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K.. 0.85
Vanadium ¡K¡K..¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K...0.97
Tungsten ¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K¡K. 1.15
Hardness of
weld metal:
650 ~ 800 V.H.N. ( HRC: 60
~ 65 )
Available diameter and recommended operating ranges¡G
¡@
¡@ |
F.
& H. ¡V fillet |
¡@ |
3.2 X350 m/m
4.0 X400 m/m
5.0 X400 m/m |
90 ~ 120 Amps
140 ~ 180 Amps
190 ~ 240 Amps |
|
Type
of power¡GA.C. or D.C.E.P.
Approvals¡G |