HT-1481 MEDIUM YELLOW FABRICATION PURPOSE

United # HT 1481 MEDIUM yellow alloy is formulated for 9K – 14K & 19K to 22 K MEDIUM Yellow Gold Casting and sheet, plate & wire fabrication giving a MEDIUM Yellow color. Alloy # HT 1481 can be used for casting also.

This Alloy is not recommended for 18 Karat.

MELTING The # HT 1481 MEDIUM Yellow 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 950º C - 980º C for 9K – 14K, and

1100º - 1120º C for 19K – 22K. 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 9K - 14 K - 950º C - 980º C (1742º F- 1796º F)

FOR INGOTS

19 K – 22K - 1100º - 1110º C (2012º F - 2030º F)