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ARRO ROSENSON
PREMIUM DENTAL PRODUCTS. Call: 1-800-666-2776

Arrloy

Arloy premium, non-precious, nickel-chromium-based ceramic alloy is compatible with most popular porcelains and offers superior bond strength.
 
MAJOR COMPONENTS
NICKEL = 77.00% NOMINAL 
CHROMIUM = 14.00% NOMINAL 
MOLYBDENUM = 4.70% NOMINAL
ALUMINUM = 2.00% NOMINAL 
BERYLLIUM = 1.80% NOMINAL
Fe, Si. Mn, C = < 1.00%

PHYSICAL PROPERTIES OF ARLOY

Melting Range = 2120-2355°F (1160-1280°C)
Casting Temperature = 2500°F (1370°C)
Co-Efficient of Expansion, @ 500°C = 14.5 x 106
@ 600°C = 14.7 X105
Vickers Hardness = af=37O
Yield Strength = af=91,4OO psi (630 MPa)
Modulus of Elasticity = 207 GPa
Elongation = af=10°/o
Density = 7.8 g/cm3 

af=after firing

INDICATIONS FOR USE:
Arloy is a Nickel-Chromium based alloy acceptable for use in fabrication of dental prosthetics and reconstruction.
Rx Only
 
TECHNICAL INSTRUCTIONS

WAXING: 0.3 to 0.4 mm thickness

SPRUING: 8 - 10 gauge wax (3.3 - 2.6 mm diameter)
sprues, direct or indirect with a runner bar, put
reservoirs opposite all pontics

INVESTING: High heat phosphate bonded investment Mix under vacuum (1 - 1 1/2 min.)

BURNOUT: Two-Stage burnout technique is recommended
Stage #1: Room Temp. to 600°F (300°C), hold for 30 min.
Stage #2; Raise to 1605°F (875°C), hold for 60 min.

Single stage burnout: room temp. to 1605°F (875°C), hold 60 min.

CASTING: Induction casting with argon is recommended.
Use multiple orifice torch, preheat 100% quartz crucibles 20 psi oxygen + 10 psi propane gas
Heat ingots evenly until they all "slump”. Use 50% new alloy when recasting buttons

CLEANING: Sandblast with 50 micron while aluminum
oxide at 5 - 6 cm Hg (80 psi)
Use only aluminum oxide wheels and discs Ultrasonic cleaner with distilled water for 3 - 5 min.

OXIDATION: 1200-1800°F (650-980°C), with vacuum,
do not remove oxide

WARNING:

Caution:

- This alloy contains nickel and should not be used for individuals with known nickel sensitivity.
- Contains Beryllium - Beryllium dust can be toxic — do not inhale. Grind and polish with adequate ventilation only.
- Please use alloy in accordance with the MSDS sheet supplied with the product.