Alloy # 200 - Lacy West Jewellery Tools and Supplies

Alloy # 200
14K Bright Yellow Casting

Technical Information

Purpose	Mix Alloy #200 with fine gold to obtain 14K Bright Yellow Gold for casting.
Melting	Melt Temperature for 14K Alloyed Grain: 950°- 970°C, 1745°-1780°F. Melting Temperature for Alloying: 1010°-1040°C, 1850°-1910°F. Pre-graining is recommended for all alloy and fine gold before casting to assure a uniform mixture.
Flask Temperature	Normal recommended temperature.
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	35% - 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.