NICRALLIUM® N4 ingots are made of a non-precious cobalt-based, nickel- and beryllium-free dental alloy.
NICRALLIUM® is a registered trademark of B.C.S Dental Alloys.
Nicrallium N4
CERAMO METALLIC NICRALLIUM CoCr FOR CASTING INGOT
NICRALLIUM® N4 ingots are made of a non-precious cobalt-based, nickel- and beryllium-free dental alloy.. Lire plus
- MODELLING
Models to be cast should have a minimum thickness of 0.3 mm.
Avoid burn-out elements.
Use high-quality wax.
The use of vents is recommended when casting multiple elements.
- INVESTMENT
Use a phosphate investment, intended for alloys of this type, and follow the manufacturer’s instructions for use.
Cover the models with 5mm of coating.
- HEAT
Before placing in the oven, allow the coating to dry for about an hour.
Put the cylinder in the cold oven and heat it to a temperature of 950°C, hold for 1 hour. Increase the time by 15 minutes for each additional cylinder.
Chemical composition
C
- 0,02%%
Si
- 1,6%%
Mo
- 6,5%%
Cr
- 24,8%%
Co
- 62%%
W
- 4,5%%
Mn
- 0,2%%
Other
- 0,3%
Mechanical properties
DENSITY
8.40
HARDNESS
275 HV
MODULUS OF ELASTICITY
205 GPa
YIELD STRENGTH UNDER TENSION 0.2%
360 MPa
ULTIMATE TENSILE STRESS
630 MPa
ELONGATION AT BREAK
10%
MELTING RANGE SOLIDUS
1280 C°
MELTING RANGE LIQUIDUS
1350 C°
COEFFICIENT OF THERMAL EXPANSION FROM 20 TO 500°C
13,9 x 10-6
The above values are provided for indication purposes.
