HT-1431 DARK YELLOW FABRICATION PURPOSE

HT-1431 DARK YELLOW FABRICATION PURPOSE

United # HT 1431 Alloy is formulated for 18 Karat Dark Yellow Gold sheet, plate and wire fabrication giving a Dark Yellow color. The # HT 1431 Alloy can also be used for Investment Casting if desired.

MELTING The # HT 1431 Alloy, and fine gold should be melted together in a clean crucible. Put alloy in the bottom of the crucible and fine gold on top. Initial melting temperature should be 1070º C / 1958º F. Drop temperature somewhat before pouring as listed below. Boric acid flux may be used to keep the metal clean during the melting process. The metal should be mixed well with a stirring rod before pouring to assure a good mix.

POURING TEMP 18 K – 1000º – 1010º C

FOR INGOTS 1832º – 1850º F