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AlphaSil406
925
General Information
Category
Silver
Caratage
925-950
Color
Silver
Color Shade
Silver
Typology
Alloys For Silver
Production Process
İnvestment Casting
Density [cm
3
]
10,3
Solidus [°C]
725
Liquidus [°C]
910
As cast hardness [HV]
70
Ingredient
Ag
Cu
Zn
Ni
Deoxidant
Grain Refiner
Other
Typical Applications
Open System
Closed System
Press
CNC and Lathe Production
Handmade
Hollow Chain
Machine Chain
Wire Production
Production of tube from continuous casting
Sheet Production
Hollow chain Production
General Characteristics
As Cast Grain Size [µm]
400
Color Coordinates
L*
94
a*
-0,6
b*
6,3
c*
6,3
Mechanical Caracteristics
Tensile Strength (Rm) [MPa]
220
Yields strength (Rp0.2) [MPa]
110
Elongation Rupture (A) [%]
27
As cast Hardness [HV]
70
Hardness after 70% area red. [HV]
150
Hardness after annealing [HV]
75
Hardness after age-hardening [HV]
115
Casting Processing Parameters
Pre-mixing temperature [°C]
1030
Casting Temperatures
Metal [°C]
Flask [°C]
Thin (below 0.5 mm )
1000
-
1030
640
-
680
Medium ( from 0.5-1.2 mm)
970
-
1000
580
-
640
Thick (Thick 1.2 mm)
950
-
970
500
-
580
Trees without stones
After casting, cooling time for the flaks is 15 m
Stone-in-place casting trees
After casting, cooling time for the flaks is 45 m
Pickling :
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
12
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