Nicr with Be
Dental Nickle Chrome alloy
1. Product: PFM casting Nickle chrome dental alloy
2. Technical Data & Composition
Melting Range | 1240°C-1290°C |
Yield Strength | 560 MPa |
Density | 8.1 (g/cc) |
Elongation | 12% |
Coefficient of Liner Expansion (25-500°C) | 13.8X 10-6K-1 |
3. Instructions for use
Waxing: Minimum metal thickness (after grinding) should be 0.3mm. Waxing could be as thin as 0.3mm to 0.35mm
Sprueing:
A-Direct for single units. Sprueing should be 6mm in length. Based on the size and the thickness of crowns use 6-8 gauge sprues.
B-indirect for multiple units. Use straight 8 gauge sprue, about 3 or 4mm in length and connect it to the unit.
For long spanned bridges use and additional sprue connected to the last unit.
Investing: use high heat investments. Follow the manufacturer's instructions carefully. After investment has set, scrape the top of the investment to allow gases to escape.
Burnout: Place the ring in the furnace at room temperature, increase the temperature to 980-1050°C, with one hour holding time. Add 10/15 extra minutes for each additional ring.
PFM casting Nickel Chrome Beryllium free, Nickel Chrome with Beryllium, and Cobalt Chrome dental alloy
Products | Component |
Nickel Chrome with Beryllium | Nickel 76% Chrome 15% Molybdenum 5% Beryllium1.70% Aluminum 2% others 3% |
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