W-1

Pd (53.3%)-based dental metal-ceramic alloy, Type 4

W-1

W-1 is a classical, palladium-based ceramic alloy, compatible with conventional metal-ceramics. Its mechanical properties and easy processing allow a wide range of indications.

Indications*

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

Technical Data

Composition (%):  Pd 53.3 | Ag 37.7 | Sn 8.5 | In <1.0, Ru <1.0, Li <1.0
ISO  22674:2016
ADA Class: Noble
Type / Color: 4 / White
Density (g/cm³) 11.1
Melting Range (Solidus/Liquidus): 1185 - 1270 °C
Elastic Modulus (GPa): 120
  Porcelain Fired        Hardened                  
Vickers Hardness: 225                           285
Tensile Strength (MPa): 650                           760
0.2% Proof Stress (MPa):  450                           605
Elongation (%): 11                              5

Advantages

  • Easy processing and polishing
  • Decades of successful use
  • Wide range of indications
  • 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: 1320 - 1380 °C
Oxidation  °C/min/Vacuum: 1010 / 5 / Yes
CTE: (25 – 500 °C): 15.0 x 10-6 /K
Recommended Metal Ceramic: IPS Style, IPS InLine One,  IPS InLine, IPS Classic
Laser Welding Wire: Laser Ceramic Yellow

*See TYPE CLASSIFICATION DUE TO PHYSICAL PROPERTIES

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