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Nicrallium N4

ingot-chrome-cobalt-n4 BCS

NICRALLIUM® N4 ingots are made of a non-precious cobalt-based, nickel- and beryllium-free dental alloy.. Lire plus

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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.

  • 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.

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