Wiron 99

Wiron® 99 – Premium NiCr alloy for metal-to-ceramic work or composite veneering
– beryllium-free

  • Worldwide proven reliability in use since 1988.
  • Secure metal-ceramic bond, minimising the risk of subsequent flaking or chipping.
  • Low vickers hardness – for easy, fast finishing and polishing to a high lustre.
  • Simple casting time recognition – problem-free processing in all induction casting machines.
  • High modulus of elasticity for greater protection against deformations caused by masticatory forces.
  • High wearing comfort for patients thanks to the low thermal conductivity.
  • Biocompatible and highly corrosion-resistant thanks to a firmlyadhering passive layer.
  • Type 3: Indicated for fixed, multi-unit prosthetic restorations, e.g. bridgework.
Product details
Composition in % by mass
Ni 65.6 · Cr 22.5 · Mo 9.5 · Si 1.0 · Ce · Mn · Nb
Alloy characteristics Standard values
Type (ISO 22674) 3
Density 8,3 g/cm3
Preheating temperature 900-1 000 °C
Solidus, liquidus temperature 1 310, 1 360 °C
Casting temperature approx. 1 450 °C
Young’s modulus 170 GPa
Proof strength (Rp0,2) 335 MPa
Ultimate strength (Rm) 655 MPa
Elongation after fracture (A 5) 43 %
Vickers hardness 180 HV10
Coefficient of thermal expansion (CTE)
25–500 °C, 10-6 K-1
13.9
Availability REF
Wiron® 99, 1 kg 50225
Wiron® 99, 250 gr 50226
Accessories REF
Wiroweld Ni-Cr laser wire, carbon-free, Ø 0,35 mm 50006
Wiron®– soldering rods 52625

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