Ligatio Metallica | AlphaPlus.com.tr

General Information
Category	Gold
Caratage	18K
Color	Red
Color Shade	Red
Typology	Alloys For Gold
Production Process	Universal
Density [cm³]	15
Solidus [°C]	925
Liquidus [°C]	950
As cast hardness [HV]	190

Ingredient

Ag Cu Zn Ni Deoxidant Grain Refiner Other

Typical Applications

General Characteristics
As Cast Grain Size [µm]	30

Color Coordinates
L*	86,7
a*	9,7
b*	15,6
c*	18,37

Mechanical Caracteristics
Tensile Strength (Rm) [MPa]	535
Yields strength (Rp0.2) [MPa]	385
Elongation Rupture (A) [%]	30
As cast Hardness [HV]	190
Hardness after 70% area red. [HV]	295
Hardness after annealing [HV]	190
Hardness after age-hardening [HV]	340

Casting Processing Parameters
Pre-mixing temperature [°C]	1050

Casting Temperatures	Metal [°C]	Flask [°C]
Thin (below 0.5 mm )	1025 - 1055	660 - 720
Medium ( from 0.5-1.2 mm)	1005 - 1025	600 - 660
Thick (Thick 1.2 mm)	985 - 1005	540 - 600

Trees without stones Remove the flask within 1 minute after pouring, then quench immediately in water.

Stone-in-place casting trees Remove the flask immediately from the machine. Dip only the bottom part of the tree in cold water and keep under ventilation for 15 minutes. Quench in water.

Pickling : Sulphuric acid (%10) - 5 min - 50°C

Mechanical Working Parameters

Pre-mixing temperature [°C]	1030-1080
Pickling	Sulphuric Acid (%10)

Casting Temperature	Metal - from [°C]	Metal - to [°C]
Ingot Making	1060	1100
Continuous Casting	1080	1120

Reccomended reductions
Sheet - area or thickness [%]	70
Wire - diameter [%]	45

Mechanical working recommended annealing	Temperature [°C]	Time [min]
> 5 mm	630 - 670	40
1 - 5 mm	630 - 670	30
< 1 mm	630 - 670	20

Age Hardening Processing Parameters
Single step age-hardening treatment	Temperature [°C]	Time [min]	Quenching	Age-hardening
Age-hardening	250	100	Cooling in furnuce

PRODUCTS

AlphaFine733