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AlphaCast004


General Information
Category Gold
Caratage 8K-18K
Color Red
Color Shade Red
Typology Alloys For Gold
Production Process İnvestment Casting
Density [cm3] 14,6
Solidus [°C] 885
Liquidus [°C] 905
As cast hardness [HV] 165
Ingredient
  • Ag
  • Cu
  • Zn
  • Ni
  • Deoxidant
  • Grain Refiner
  • Other
Typical Applications
General Characteristics
As Cast Grain Size [µm] 335
Color Coordinates
L* 86,4
a* 9,1
b* 16,3
c* 18,7
Mechanical Caracteristics
Tensile Strength (Rm) [MPa] 450
Yields strength (Rp0.2) [MPa] 315
Elongation Rupture (A) [%] 33
As cast Hardness [HV] 165
Hardness after 70% area red. [HV] 278
Hardness after annealing [HV] 165
Hardness after age-hardening [HV] 320
Casting Processing Parameters
Pre-mixing temperature [°C] 1120
Casting Temperatures Metal [°C] Flask [°C]
Thin (below 0.5 mm ) 1020 - 1040 650 - 680
Medium ( from 0.5-1.2 mm) 1000 - 1020 600 - 650
Thick (Thick 1.2 mm) 990 - 1000 550 - 600
Age Hardening Processing Parameters
Single step age-hardening treatment Temperature [°C] Time [min] Quenching Age-hardening
Age-hardening 300 100 Cooling in furnuce
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