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AlphaCast302


General Information
Category Gold
Caratage 8-22K
Color Red
Color Shade Red
Typology Alloys For Gold
Production Process İnvestment Casting
Density [cm3] 13,50
Solidus [°C] 860
Liquidus [°C] 905
As cast hardness [HV] 128
Ingredient
  • Ag
  • Cu
  • Zn
  • Ni
  • Deoxidant
  • Grain Refiner
  • Other
Typical Applications
Open System
Closed System
Sheet Production
General Characteristics
As Cast Grain Size [µm] 1100
Color Coordinates
L* 84
a* 7
b* 15,2
c* 16,8
Mechanical Caracteristics
Tensile Strength (Rm) [MPa] 542
Yields strength (Rp0.2) [MPa] 290
Elongation Rupture (A) [%] 34
As cast Hardness [HV] 128
Hardness after 70% area red. [HV] 290
Hardness after annealing [HV] 155
Hardness after age-hardening [HV] 160
Casting Processing Parameters
Pre-mixing temperature [°C] 1100
Casting Temperatures Metal [°C] Flask [°C]
Thin (below 0.5 mm ) 1050 - 1080 650 - 680
Medium ( from 0.5-1.2 mm) 1020 - 1050 600 - 650
Thick (Thick 1.2 mm) 990 - 1020 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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