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Harmony C&B 55

Harmony C&B 55 is a gold-reduced, golden yellow casting alloy for economical use. Its low hardness enables easy and fast surface finishing.

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Indications*

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

Technical Data

Composition (%):  Au 55.0 | Pd 5.2 | Ag 30.0 | Cu 9.0 | In <1.0, Ir <1.0
ISO  22674:2016
ADA Type High Noble
Type / Color 4 / Yellow
Density (g/cm³) 13.6
Melting Range (Solidus/Liquidus): 905 - 975 °C
Elastic Modulus (GPa): 120
As Cast              Softened        Hardened 
Vickers Hardness: 185                      130                  220
Tensile Strength (MPa): 575                      430                  660
0.2% Proof Stress (MPa):  425                      250                  540
Elongation (%): 19                        30                    10

Advantages

  • Golden yellow colour
  • Clinically proven
  • Excellent resistance to oral conditions
  • Certified biocompatibility

Processing Data

Investment Material:  Phosphate-bonded / Gypsum-bonded
Preheating / Burn- out Temperature: 650 - 760 °C
Crucible  Carbon crucible / Ceramic crucible
Casting Temperature: 1030 - 1090 °C
Laser Welding Wire: Laser C&B Yellow

*See TYPE CLASSIFICATION DUE TO PHYSICAL PROPERTIES

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Alloy Property Chart - Global