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AlphaUni298

14

General Information
Category	Gold
Caratage	14K
Color	White
Color Shade	Standart White
Typology	Alloys For Gold
Production Process	General
Density [cm³]	13.65
Solidus [°C]
Liquidus [°C]
As cast hardness [HV]

Ingredient

Ag Cu Zn Ni Deoxidant Grain Refiner Other

Typical Applications
Open System
Closed System

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]

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 : Sülfürik asit (%10) - 5 dk. - 50°C

Mechanical Working Parameters

Pre-mixing temperature [°C]	1030-1080
Pickling	Sülfürik Asit (%10)

Casting Temperature	Metal - from [°C]	Metal - to [°C]
Ingot Making	1030	1080
Continuous Casting	1060	1120

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	285	100	Cooling in furnuce

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