BEGO GmbH & Co. KG

Wironit® extrahart

• Due to its high proof strength and ultimate strength, this alloy is ideally suited for combination work

• Outstanding casting properties thanks to the special composition with silicon and carbon

• Very low thermal conductivity of the alloy emphasises the wearing comfort of the prosthesis

• Biocompatible and corrosion-resistant

  • Category
    Alloys
  • REF
    50045
  • Item name
    Wironit® extrahart
  • Iso type ISO22674
    5
  • Elastic modul
    185 GPa
  • Vickershardness
    385 HV10
  • Product description
    Cobalt-Chromium partial denture alloy
  • Liquidustemp.
    1390 °C
  • Solidustemp
    1260 °C
  • Density g/cm³
    8,2 g/cm³
  • Composition
    Co 63,0 · Cr 30,0 · Mo 5,0 · Si 1,0 · Mn 1,0 · C
  • Preheat temp. to
    1050 °C
  • Preheat temp. from
    950 °C
  • Color code
    8
  • Base metall
    Cobalt
  • Content/amount
    1.1 kg pack
  • Yield strength
    635 MPa
  • Tensile strength
    900 MPa
  • Elongation at break
    8 %
  • Casting temperature
    1420 °C