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AlphaFine612
14
18
21
General Information
Category
Gold
Caratage
14-21K
Color
Yellow
Color Shade
Light Yellow
Typology
Alloys For Gold
Production Process
Plastic Deformation and Handmade
Density [cm
3
]
14.63
Solidus [°C]
Liquidus [°C]
As cast hardness [HV]
Ingredient
Ag
Cu
Zn
Ni
Deoxidant
Grain Refiner
Other
Typical Applications
General Characteristics
As Cast Grain Size [µm]
Color Coordinates
L*
a*
b*
c*
Mechanical Caracteristics
Tensile Strength (Rm) [MPa]
Yields strength (Rp0.2) [MPa]
Elongation Rupture (A) [%]
As cast Hardness [HV]
Hardness after 70% area red. [HV]
Hardness after annealing [HV]
Hardness after age-hardening [HV]
Mechanical Working Parameters
Pre-mixing temperature [°C]
1020-1080
Pickling
Sulphuric Acid (%10)
Casting Temperature
Metal - from [°C]
Metal - to [°C]
Ingot Making
1020
1080
Continuous Casting
1080
1120
Reccomended reductions
Sheet - area or thickness [%]
65
Wire - diameter [%]
45
Mechanical working recommended annealing
Temperature [°C]
Time [min]
> 5 mm
660
-
700
40
1 - 5 mm
660
-
700
30
< 1 mm
660
-
700
20
Age Hardening Processing Parameters
Single step age-hardening treatment
Temperature [°C]
Time [min]
Quenching
Age-hardening
Age-hardening
275
100
Cooling in furnuce
12
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