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AlphaRoyal1600


General Information
Category Gold
Caratage 10K-14K
Color Yellow
Color Shade Light Yellow
Typology Alloys For Gold
Production Process İnvestment Casting
Density [cm3] 12,65
Solidus [°C] 820
Liquidus [°C] 875
As cast hardness [HV] 105
Ingredient
  • Ag
  • Cu
  • Zn
  • Ni
  • Deoxidant
  • Grain Refiner
  • Other
Typical Applications
General Characteristics
As Cast Grain Size [µm] 950
Color Coordinates
L* 90,5
a* 2,16
b* 19,12
c* 19,24
Mechanical Caracteristics
Tensile Strength (Rm) [MPa] 290
Yields strength (Rp0.2) [MPa] 145
Elongation Rupture (A) [%] 52
As cast Hardness [HV] 105
Hardness after 70% area red. [HV] 270
Hardness after annealing [HV] 115
Hardness after age-hardening [HV] 127
Casting Processing Parameters
Pre-mixing temperature [°C] 1050
Casting Temperatures Metal [°C] Flask [°C]
Thin (below 0.5 mm ) 980 - 1020 660 - 720
Medium ( from 0.5-1.2 mm) 960 - 980 600 - 660
Thick (Thick 1.2 mm) 935 - 960 540 - 600
After casting, cooling time for the flaks is 15 m
After casting, cooling time for the flaks is 45 m
Sulphuric acid (%10) - 5 min - 50°C
Age Hardening Processing Parameters
Single step age-hardening treatment Temperature [°C] Time [min] Quenching Age-hardening
Age-hardening 250 100 Cooling in furnuce
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