W-5

Au (52.2%)-based dental metal-ceramic alloy, Type 4
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W-5

W-5 is a classical, reduced-gold ceramic alloy. The good casting characteristics and the high heat resistance allow for the production ceramic veneered to metal frameworks and implant-supported superstructures of high accuracy.

Indications*

  • Onlays, ¾ crowns, crowns
  • Telescope crowns, conus crowns
  • Bridges
  • Wide-span bridges
  • Cast posts / cores, bars, attachments
  • Implant-supported superstructures
  • Partial dentures

Technical Data

Composition (%):  Au 52.2 | Pd 26.0 | Ag 17.1 | Sn 2.7 | Pt <1.0, In <1.0, Ir <1.0, Re <1.0, Li <1.0
ISO  22674:2016
ADA Class: High Noble
Type / Color: 4 / White
Density (g/cm³) 13.8
Melting Range (Solidus/Liquidus): 1185 - 1285 °C
Elastic Modulus (GPa): 130
  Porcelain Fired        Hardened                  
Vickers Hardness: 215                           255
Tensile Strength (MPa): 715                           745
0.2% Proof Stress (MPa):  475                           520
Elongation (%): 15                              12

Advantages

  • Light oxide
  • Good melting and flow characteristics
  • High heat resistance
  • Compatible with conventional metal-ceramics (e.g. IPS Style)
  • Tested biocompatibility

Processing Data

Investment Material:  Phosphate-bonded
Preheating / Burn- out Temperature: 750 - 820 °C
Crucible  Ceramic crucible
Casting Temperature: 1345 - 1385 °C
Oxidation  °C/min/Vacuum: 950 / 5 / No
CTE: (25 – 500 °C): 14.0 x 10-6 /K
Recommended Metal Ceramic: IPS Style, IPS InLine One, IPS InLine, IPS Classic
Laser Welding Wire: Laser Ceramic White

*See TYPE CLASSIFICATION DUE TO PHYSICAL PROPERTIES

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