Porta SMK 82

Au (57.5%)-based dental metal-ceramic alloy, Type 4

Porta SMK 82

Porta SMK 82 is a reduced-gold ceramic alloy with high strength for a wide range of indications. The silver-free composition enables reliable processing with conventional metal-ceramics.

Indications*

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

Technical Data

Composition (%):  Au 57.5 | Pd 31.4 | In 8.0 | Pt 1.5 | Ga 1.6 | Ru <1.0
ISO  22674:2016
Type / Color: 4 / White
Density (g/cm³) 14.3
Melting Range (Solidus/Liquidus): 1090 - 1240 °C
Elastic Modulus (GPa): 120
  Porcelain Fired        Hardened                  
Vickers Hardness: 250                           280
Tensile Strength (MPa): 700                           730
0.2% Proof Stress (MPa):  520                           570
Elongation (%): 11                              8

 

Advantages

  • Ag-free
  • Good melting and flow characteristics
  • Increased strength
  • Wide range of indications
  • Compatible with conventional metal-ceramics (e.g. IPS Style)

Processing Data

Investment Material:  Phosphate-bonded
Preheating / Burn- out Temperature: 900 °C
Crucible  Ceramic crucible
Casting Temperature: 1390 °C
Oxidation  °C/min/Vacuum: 930 / 5 / No
CTE: (25 – 500 °C): 13.9 x 10-6 /K
Recommended Metal Ceramic: IPS Style, IPS InLine
Laser Welding Wire: Porta P6

*See TYPE CLASSIFICATION DUE TO PHYSICAL PROPERTIES

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