KAWAT LAS HARD FACING 60 – 69 HRC NIHONWELD NHF-950

Length : 350mm
Packing : 5kg/tube
Diameter : 3.2 mm / 4.0 mm

APPLICATIONS:
Hard surfacing of shovel teeth, cutter knives of dredger and speed mullers, etc.

DESCRIPTION:
NHF-950 obtain a weld metal which contains large quantity of dispersed tungsten carbide and withstands heavy soil impact-free abrasion. Machining as-welded condition is impossible.

NOTES ON USAGE:
Usually over 200C preheating and 500~600C postheating are required.
Take care of the increase of cracking tendency when used for over triplelayer welding.
Underlaying with low hydrogen type electrodes (N-7016 or N-18) is required.
Dry the electrodes at 150~200C for 30~60 minutes before use.

HARDNESS OF WELD METAL: 60-69 HRC (700-950 Hv)