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AlphaCast135


General Information
Category Gold
Caratage 10K-14K
Color Yellow
Color Shade Light Yellow
Typology Alloys For Gold
Production Process İnvestment Casting
Density [cm3] 12,90
Solidus [°C] 797
Liquidus [°C] 850
As cast hardness [HV] 130
Ingredient
  • Ag
  • Cu
  • Zn
  • Ni
  • Deoxidant
  • Grain Refiner
  • Other
Typical Applications
Open System
Closed System
Sheet Production
General Characteristics
As Cast Grain Size [µm] 615
Color Coordinates
L* 90,8
a* 2.15
b* 19.05
c* 19.17
Mechanical Caracteristics
Tensile Strength (Rm) [MPa] 310
Yields strength (Rp0.2) [MPa] 170
Elongation Rupture (A) [%] 50
As cast Hardness [HV] 130
Hardness after 70% area red. [HV] 285
Hardness after annealing [HV] 140
Hardness after age-hardening [HV] 210
Casting Processing Parameters
Pre-mixing temperature [°C] 1050
Casting Temperatures Metal [°C] Flask [°C]
Thin (below 0.5 mm ) 970 - 1010 660 - 700
Medium ( from 0.5-1.2 mm) 970 - 950 620 - 660
Thick (Thick 1.2 mm) 930 - 950 540 - 600
After casting, cooling time for the flaks is 45 minutes.
After casting, cooling time for the flaks is 15 minutes.
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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