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Weld Mold® 964


A high alloy hot work welding electrode and flux-cored tubular wire Weld Mold 964 is premium quality material with excellent operating characteristics. Weld Mold 964 was designed to outperform standard grades of hot work tool steel such as those in the 5% chromium category. The electrode form is good for out of position welding when necessary.

Applications

A highly wear-resistant alloy for hot-work applications such as overlays on aluminum die-cast dies and open forging dies used for titanium and other exotic alloys. Also used in steel mill components where hot hardness is essential, accompanied by drastic cooling conditions.

Procedure

Prepare area to be welded by removing all cracks, heat checks or defects by grinding, scarfing or the carbon arc process. Undercut impressions or dies to a depth of 1/4″ for cladding. Clean area of any slag, scale, rust or drawing compounds. Preheat unit from 800º F to 1000º F. Maintain a minimum temperature of 800º F during welding. Use the stringer bead technique. Peen the crater of the weld bead after depositing each pass. Post heat at 1050º F for one to two hours. Slow cool to 300º F to obtain the ultimate grain refinement and uniform hardness in the weld deposit. Temper at 1050º F at one hour per inch of thickness. A double, or second temper at 50º F lower than the first is recommended.

SMAW - DC+
FCAW - DC+, 92% Ar 8% CO2

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