Alloy # 470- Lacy West Jewellery Tools and Supplies

Alloy # 470
10-14K Standard Yellow Casting

Technical Information

Purpose	Mix Alloy #470 with fine gold to obtain 10K or 14K Standard Yellow Gold for casting.
Melting	For 14K Alloyed Grain: 970°-990°C, 1780°-1815°F. For 10K Alloyed Grain: 990°-1020°C, 1815°-1870°F. For Alloying: 1030°-1065°C, 1900°-1950°F. Pre-graining is recommended for all alloy and fine gold before casting to assure a uniform mixture.
Flask Temperature	Increase normal temperature 50°F.
Fluxing	Boric Acid is the recommended flux. Use as little flux as possible. Do not use carbon fluxes or any fluxes designed for refining; i.e. soda ash, saltpeter, etc. Avoid flux in bottom pour automatic casting units.
Quench Time	15 - 20 minutes.
Investment Removal	Most standard investment removers will successfully remove the investment powder. Fluoric-based investment removers are the best for removing the silicon oxide invisible coating.
Re-Melting	50% fresh mix for re-melting is recommended, unless #99 Alloy Replenisher is used.
Notes	Melt temperature may vary with type of unit. This alloy is designed for casting only.