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Master Alloy: G840

Color: Green

Alloy Characteristics	10K	14K	18K
Density (g./cm³)	12.69	14.10	15.89
Hardness – As Cast (Hv)
Hardness – Cold Worked /Reduced 60% (Hv)
Recommended Investment Casting Parameters	10K	14K	18K
Casting Temperature Range (^oC)	1010-1035	995-1025	1100-1120
Flask Temperature Range (^oC)	437-677	437-677	437-677
Quench Time (min.)	20 min.	20 min.	20 min.
Re-alloying Scrap Percentage	<75%	<75%	<75%

Recommended Cast Tree Cleaning and Drying Procedure

After a preliminary removal of the investment powder during quenching, submerge trees in a hot (80-100^oC) 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!