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Harmony Hard

Au (74.0%)-based dental casting alloy, Type 2

Harmony Hard is a high gold casting alloy with a distinct yellow colour. Due to the good processing properties and the wide range of indications when heat-treated, this alloy can be used for many different applications.

Indications*

  • Inlays
  • Onlays, 3/4 crowns, crowns

Technical Data

Composition (%):  Au 74.0 | Pd 3.8 | Ag 12.0 | Cu 9.0 | In <1.0, Ir <1.0, Zn <1.0
ISO  22674:2016
ADA Class  High Noble
Type / Color 2 / Yellow
Density (g/cm³) 14.9
Melting Range (Solidus/Liquidus): 895 - 970 °C
Elastic Modulus (GPa): 86
  As Cast              Softened        Hardened 
Vickers Hardness: 130                      130                  180
Tensile Strength (MPa): 430                      395                  475
0.2% Proof Stress (MPa):  260                      255                  330
Elongation (%): 40                        45                    30
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