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AlphaCast202

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General Information
Category	Gold
Caratage	14K-18K
Color	White
Color Shade	Standart White
Typology	Alloys For Gold
Production Process	İnvestment Casting
Density [cm³]	12,40
Solidus [°C]	880
Liquidus [°C]	915
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 )	1020 - 1050	660 - 700
Medium ( from 0.5-1.2 mm)	1000 - 1020	620 - 660
Thick (Thick 1.2 mm)	980 - 1000	580 - 620

Trees without stones After casting, cooling time for the flaks is 45 minutes.

Stone-in-place casting trees After casting, cooling time for the flaks is 15 minutes.

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	285	100	Cooling in furnuce

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