HARD FACING ELECTRODE
RASI HF 650R
C-Cr-Mo-Ni-V-W Steel air hardening

CHARACTERISTICS
RASI HF 650R is a rutile based hard facing electrode with Iron powder in the coating for higher metal recovery. The running properties are welder friendly. The weld metal is a complex C-Cr-Mo-V-Ni-W alloy steel and is a special air - hardening allow steel. Finds wide variety of applications.

EXCLUSIVE FEATURES

Smooth, Quiet and stable arc	Non - porous crack free welds
Lowest possible spatter level bead	Self disposing slag
Excellent abrasive wear resistance	Moderate impact resistance
Multi - layer buildup

DEPOSIT HARDNESS - AS WELDED HRc 56-60 : Hv 625-700 on 3rd layer on mild steel. Hardness is likely to vary slightly above or below the designed values, depending upon the type and hardenability of the base material and rate of cooling. Non - machinable deposit and can be shaped by grinding only.

HEAT TREATMENT  The deposit is amenable to By quenching from 8500C - 9000C in oil/ oil water media, hardness in excess of 60HRc is obtainable but at the expense of impact resistance and susceptibility to cracks and fissures. Can be annealed from 6500C - 7000C to obtain a hardness as low as 49 HRc. But the impact resistance and thermal shock resistance are excellent.

For an extremely hard and abrasive wear - resistant and a very tough surface on a variety of steel types. 

Dipper shovels, Lips	Coupling Boxes	Woodworking Tools
Mud & slurry pumps	Swing Hammers	Blanking Dies
Crane Hooks	Crusher Jaws	Chuck Jaws
Dredge Pumps	Cams	Punches
Pump Impellers	Extrusion Dies	Clutch parts

STORE DRY : Confirm the electrodes are absolutely dry as packed. if exposed and damp, heat them to 150^oC for 30 minutes and use.  

Note : Rasi HF 650 G (Graphite Coated) is also available on request.

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