 #340
Alloy
Thank you for using UNITED'S alloys.
UNITED'S 340 Casting Brass is a bright yellow brass designed to
cast jewelry samples, models, belt buckles, art objects, etc. It
finishes to a bright 14K color and easily solders with silver or low
gold formulas.
You should obtain excellent results by following a few simple
instructions.
MELTING
Melt Temperature for casting - 1050°C 1922°F.
FLASK TEMPERATURE
We suggest a higher flask temperature for light and medium
weight pieces. 1200°- 1300°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. UNITED'S
Brite-Cast Investment Remover also works very well.
NOTES
Melt temperature may vary with type of unit. This alloy is designed
for casting only. #340 Brass should not be used for gold casting!
#340 Brass should not be cyanide gold plated, use acid gold plating
unless nickel subplate is used. For #340 Brass, we recommend an
ultrasonic cleaning solution called BCR available from OKITE, phone
# 1-800-526-4473 ext. 2411.
TECHNICAL ASSISTANCE
Always available…
Call 1-800-999-3463 / 1-800-999-FINE
E-mail / doc@unitedpmr.com
Web-Site / www.unitedpmr.com |