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AlphaCast302

General Information
Category	Gold
Caratage	8-22K
Color	Red
Color Shade	Red
Typology	Alloys For Gold
Production Process	İnvestment Casting
Density [cm³]	10.73
Solidus [°C]
Liquidus [°C]
As cast hardness [HV]	Depends On The Amount Of Ag To Be Added

Ingredient

Ag Cu Zn Ni Deoxidant Grain Refiner Other

Typical Applications
Open System
Closed System
Sheet Production

General Characteristics
As Cast Grain Size [µm]	Depends On The Amount Of Ag To Be Added

Color Coordinates
L*	Depends On The Amount Of Ag To Be Added
a*	Depends On The Amount Of Ag To Be Added
b*	Depends On The Amount Of Ag To Be Added
c*	Depends On The Amount Of Ag To Be Added

Mechanical Caracteristics
Tensile Strength (Rm) [MPa]	Depends On The Amount Of Ag To Be Added
Yields strength (Rp0.2) [MPa]	Depends On The Amount Of Ag To Be Added
Elongation Rupture (A) [%]	Depends On The Amount Of Ag To Be Added
As cast Hardness [HV]	Depends On The Amount Of Ag To Be Added
Hardness after 70% area red. [HV]	Depends On The Amount Of Ag To Be Added
Hardness after annealing [HV]	Depends On The Amount Of Ag To Be Added
Hardness after age-hardening [HV]	Depends On The Amount Of Ag To Be Added

Casting Processing Parameters
Pre-mixing temperature [°C]	1100

Casting Temperatures	Metal [°C]	Flask [°C]
Thin (below 0.5 mm )	1060 - 1090	650 - 680
Medium ( from 0.5-1.2 mm)	1030 - 1060	600 - 650
Thick (Thick 1.2 mm)	1000 - 1030	550 - 600

Trees without stones

Stone-in-place casting trees

Pickling :

Age Hardening Processing Parameters
Single step age-hardening treatment	Temperature [°C]	Time [min]	Quenching	Age-hardening
Age-hardening	300	100	Cooling in furnuce

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