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AlphaSoft131
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General Information
Category
Gold
Caratage
8-22K
Color
Red
Color Shade
Yellow-Red
Typology
Alloys For Gold
Production Process
Plastic Deformation and Handmade
Density [cm
3
]
15,20
Solidus [°C]
850
Liquidus [°C]
880
As cast hardness [HV]
150
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]
1100
Color Coordinates
L*
84
a*
7
b*
15,2
c*
16,8
Mechanical Caracteristics
Tensile Strength (Rm) [MPa]
475
Yields strength (Rp0.2) [MPa]
285
Elongation Rupture (A) [%]
38
As cast Hardness [HV]
150
Hardness after 70% area red. [HV]
285
Hardness after annealing [HV]
150
Hardness after age-hardening [HV]
Mechanical Working Parameters
Pre-mixing temperature [°C]
1000-1050
Pickling
Sulphuric acid (%10)
Casting Temperature
Metal - from [°C]
Metal - to [°C]
Ingot Making
1000
1050
Continuous Casting
1020
1100
Reccomended reductions
Sheet - area or thickness [%]
65
Wire - diameter [%]
45
Mechanical working recommended annealing
Temperature [°C]
Time [min]
> 5 mm
660
-
680
40
1 - 5 mm
660
-
680
30
< 1 mm
660
-
680
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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