Composition:
Gold 46%
Palladium 6%
Silver 39.5%
Copper 7.5%
Zinc 1.0%
Balance Ir
Color: Yelow
Applications: OZARK 46 is a yellow colored type III hard cast gold dental casting alloy. It is designed for use in crowns, inlays, veneer crowns, 3/4 crowns and short span bridgework.
Physical Properites:
| Casting Temperature | 1890F (1030C) |
| Melting Range | 1600-1725F (870-945C) |
| Density (gm/cc) | 12.4 |
| Vickers Hardness | Q-135, H-230 |
| Tensile Strength | Q-65,000 psi H-100,000 psi |
| Yield Strength | Q-50,000 psi H-84,000 psi |
| Elastic Modulus | 15,000,000 psi |
| Elongation(%) | Q-30, H-13 |
Recommended Processing:
| Recomended Solders | 585 |
| Recommended Investment | GB |
Spruing:
Single units - Direct method with 8 ga. sprues and adequate resevoirs.
Multiple Units - Indirect Method with runner bars and 8 ga. sprues.
Investment: Use a low-heat gypsum-based investment following the manufacturer's instructions.
Burnout: After adequate set-up time, place ring(s) in oven at room temperature and raise temperature to 1200F (650C) and hold for 1 hour. Add ten minutes for each additional ring.
Melting and Casting: OZARK 46 has a casting temperature of 1890F(1030C). An air/gas torch with multiorifice tip and a white flux are recommended. Clean buttons may be remelted with 50% addition of new alloy. Do not overheat the alloy.
Preparing Framework: Cassting may be blasted using aluminum oxide. Pickle with a good pickling acid. Shape, finish and polish.
Soldering:Use 585 solder with a paste flux and an air/gas torch.
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