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AlphaSil402


General Information
Category Silver
Caratage 925-930
Color Silver
Color Shade Silver
Typology Alloys For Silver
Production Process İnvestment Casting
Density [cm3] 10,3
Solidus [°C] 730
Liquidus [°C] 900
As cast hardness [HV] 60
Ingredient
  • Ag
  • Cu
  • Zn
  • Ni
  • Deoxidant
  • Grain Refiner
  • Other
Typical Applications
General Characteristics
As Cast Grain Size [µm] 250
Color Coordinates
L* 93,7
a* -0,6
b* 6,3
c* 6,3
Mechanical Caracteristics
Tensile Strength (Rm) [MPa] 260
Yields strength (Rp0.2) [MPa] 115
Elongation Rupture (A) [%] 27
As cast Hardness [HV] 60
Hardness after 70% area red. [HV] 165
Hardness after annealing [HV] 75
Hardness after age-hardening [HV] 115
Casting Processing Parameters
Pre-mixing temperature [°C] 1040
Casting Temperatures Metal [°C] Flask [°C]
Thin (below 0.5 mm ) 1000 - 1030 580 - 620
Medium ( from 0.5-1.2 mm) 980 - 1000 540 - 580
Thick (Thick 1.2 mm) 960 - 980 500 - 540
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 0 0 Cooling in furnuce
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