Porta Norm

Au (73.8%)-based dental casting/ metal-ceramic alloy, Type 4

Porta Norm is a high gold, palladium-free universal alloy for a wide range of indications and suitable for veneering with low-fusing special ceramics and laboratory composites.

Indications*

  • Inlays
  • Onlays, 3/4 crowns, crowns
  • Telescope crowns, conus crowns
  • Bridges
  • Wide-span bridges
  • Cast posts / cores, bars, attachments
  • Partial dentures

Technical Data

Composition (%):  Au 73.8 | Ag 9.2 | Pt 9.0 | Cu 4.4 | Zn 2.0 | In 1.5 | Ir <1.0 
ISO  22674:2016
Type / Color 4 / Rich Yellow
Density (g/cm³) 16.5
Melting Range (Solidus/Liquidus): 910 - 990 °C
Elastic Modulus (GPa): 100
  As Cast              Porcelain Fired        Hardened 
Vickers Hardness: 200                      225                            240
Tensile Strength (MPa): 630                      640                            680
0.2% Proof Stress (MPa):  420                      470                            530
Elongation (%): 12                        10                              6

 

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