NICRALLIUM® N4 discs are made of a non-precious cobalt-based, nickel- and beryllium-free dental alloy.
NICRALLIUM® is a registered trademark of BCS.
Nicrallium N4
CAD/CAM MACHINING MILLING CERAMO METALLIC NICRALLIUM CoCr DISC
NICRALLIUM® N4 discs are made of a non-precious cobalt-based, nickel- and beryllium-free dental alloy.. Lire plus
- MACHINING
Elements must be cut with tools adapted to the alloy.
- SURFACE WORK OF THE ELEMENT
Work according to standards with clean and sound instruments. Blasting with 50u alumina using a non-recycled blasting machine is essential. The pressure should be 5 to 7 kg, the part should have a uniform matt appearance. The cleaning can be carried out with a steam jet (5 kg approximately) or 10-minute ultrasound in ethyl acetate or alcohol at 90°.
Remember to renew your bath.
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.
