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AlphaSil401

925

General Information
Category	Silver
Caratage	925-930
Color	Silver
Color Shade	Silver
Typology	Alloys For Silver
Production Process	İnvestment Casting
Density [cm³]	10.3
Solidus [°C]	770
Liquidus [°C]	890
As cast hardness [HV]	65

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
Soft
Medium
Hard

General Characteristics
As Cast Grain Size [µm]	150

Color Coordinates
L*	94
a*	0.7
b*	6.2
c*	6.24

Mechanical Caracteristics
Tensile Strength (Rm) [MPa]
Yields strength (Rp0.2) [MPa]
Elongation Rupture (A) [%]
As cast Hardness [HV]	65
Hardness after 70% area red. [HV]
Hardness after annealing [HV]	75
Hardness after age-hardening [HV]

Casting Processing Parameters
Pre-mixing temperature [°C]	950

Casting Temperatures	Metal [°C]	Flask [°C]
Thin (below 0.5 mm )	1010 - 1030	640 - 660
Medium ( from 0.5-1.2 mm)	1000 - 1020	600 - 640
Thick (Thick 1.2 mm)	970 - 1000	540 - 580

Trees without stones After casting, cooling time for the flaks is 15 m

Stone-in-place casting trees After casting, cooling time for the flaks is 45 m

Pickling : Sülfürik asit (%10) - 5 dk. - 50°C

Mechanical Working Parameters

Pre-mixing temperature [°C]	950
Pickling	Sülfürik asit (%10) - 5 dk. - 50°C

Casting Temperature	Metal - from [°C]	Metal - to [°C]
Ingot Making	970	1000
Continuous Casting	1000	1050

Reccomended reductions
Sheet - area or thickness [%]	50
Wire - diameter [%]	40

Mechanical working recommended annealing	Temperature [°C]	Time [min]
> 5 mm	650 - 680	25
1 - 5 mm	630 - 650	25
< 1 mm	600 - 630	20

Age Hardening Processing Parameters
Single step age-hardening treatment	Temperature [°C]	Time [min]	Quenching	Age-hardening
Age-hardening	350	90	Cooling in furnuce

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