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Master Alloy: W443
Color: White (contains Nickel)
Usage: 10K 14K
Alloy Characteristics 10K 14K
Density (g./cm3)
 11.28 12.67
Hardness – Cold Worked /Reduced 60% (Hv)
 >230 >230
Hardness - Reduced 60%, annealed 15 minutes at 680C,
water quenched
 195 Hv 190 Hv
Hardness - Reduced 60%, annealed 15 minutes at 680C,
air cooled
 202 Hv 200 Hv
Recommended Investment Casting Parameters
 10K 14K
Casting Temperature Range (oC)
1160-1190C 1160-1190C
Flask Temperature Range (oC)
 650-750C 677-735C
Quench Time (min.)
 10-15 min. 10-15 min.
Re-alloying Scrap Percentage
 <75% <75%
Recommended Cast Tree Cleaning and Drying Procedure
After a preliminary removal of the investment powder during quenching, submerge trees in a hot (80-100oC) 50% phosphoric acid solution for 15-20 minutes. Rinse well with cool water to remove any remaining investment powder and base metal oxides. Dry with compressed air. Do not dry trees in any type of furnace!