DESCRIPTION
Its weld metal is 13% Mn steel and becomes austenitic by water cooling during welding. Accordingly, it has excellent toughness and high work-hardening property. So VHF-HMn, is suitable for surfacing of the parts subjected to heavy impact with abrasion. Machining of the weld is difficult due to its high work-hardening property.
APPLICATIONS
Hard surfacing of various crusher jaws, high manganese steel rails and high manganese cast steels.
INSTRUCTIONS FOR WELDING
1.) Avoid the continous welding and it is recommended to water cooling during welding.
2.) It is necessary to underlay with austenitic stainless steel in such case when the base metal is not 13% manganese steel.
3.) When the base metal of 13% manganese steel is hardened, remove it before welding.
4.) Dry the electrodes at 150 - 200ºC for 30 – 60 minutes before use.
TYPICAL ANALYSIS OF ALL WELD DEPOSIT:
C |
Si |
Mn |
Cr |
Mo |
Others |
|
|
|
0.60 |
0.17 |
14.18 |
0.53 |
0.53 |
- |
|
|
|
HARDNESS:
AS WELDED: 87-100 HRB (180-220 Hv)
WORK HARDENED 45-51 HRC (450-530 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, VERTICAL UP, 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. |
