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AlphaRoyal1350
10
14
General Information
Category
Gold
Caratage
10K-14K
Color
Yellow
Color Shade
Light Yellow
Typology
Alloys For Gold
Production Process
İnvestment Casting
Density [cm
3
]
12,9
Solidus [°C]
797
Liquidus [°C]
850
As cast hardness [HV]
135
Ingredient
Ag
Cu
Zn
Ni
Deoxidant
Grain Refiner
Other
Typical Applications
General Characteristics
As Cast Grain Size [µm]
615
Color Coordinates
L*
91
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) [%]
48
As cast Hardness [HV]
135
Hardness after 70% area red. [HV]
285
Hardness after annealing [HV]
140
Hardness after age-hardening [HV]
220
Casting Processing Parameters
Pre-mixing temperature [°C]
1050
Casting Temperatures
Metal [°C]
Flask [°C]
Thin (below 0.5 mm )
970
-
1010
660
-
720
Medium ( from 0.5-1.2 mm)
970
-
950
600
-
660
Thick (Thick 1.2 mm)
930
-
950
540
-
600
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
250
100
Cooling in furnuce
12
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