HFAE25 Smooth deposits enriched with Niobium Carbide and Chromium Carbide offer the ultimate combination of abrasion resistance and high temperance hardness retention
Average hardness equivalent to Rockwell C 64 - 68.
High percentage of hardness retention up to 1600oF (860oC).
APPLICATIONS:
For protecting all iron based parts subject to severe fine particle abrasion. Also excellent in wear applications at elevated temperatures.
MICROSTRUCTURE:
In the as welded condition the microstructure consists of an austenitic allot matrix (bulk hardness of RC 61-63) and a large proportion of chromium and complex allow carbides.
RECOMMENDED CURRENT: DC Reverse (+) or Straight (-), AC
RECOMMENDED AMPERAGE SETTINGS:
Diameter (mm)
1/8 (3.25)
5/32 (4.0)
3/16 (5.0)
Minimum Amperage
105
130
170
Maximum Amperage
135
170
240
WELDING POSITIONS: Flat, Horizontal, Half up
WELDING TECHNIQUES:
Select the minimum required amperage and utilize a medium arc gap. For smooth flat welds use a 3 x weave. There is a minimal slag which can be overwelded without prior removal. Only 2 passes are required for development of the full benefits of this alloy. Cross crack stress relieving is normal.
