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Alloy J100 White

Alloy Code: J100
Color: White
KT: 10K- 14k- 18K

General Information
J100 is a palladium-free white alloy.

Nominal Composition:
CU= 1    ZN=3    NI=2     Other= 4
*1=most, 5=least

Typical Applications: Stamping- Tube- Chain

Melting Point: 830 °C
Flow Point: 910 °C
Density: 10,1 g/cm³

Working Characteristics
Casting: Poor
Stamping: Excellent
Tube: Fair
Chain: Fair
Enameling: Good

Hardenable by Heat: Yes

Mechanical Characteristics
Vickers Microhardness After Casting   HV 0,5
18k= 184
Vickers Microhardness After Hardening   HV 0,5
18k= 227
Tensile Strength After Casting   N/mm²
18k= 560
Elongation After Casting (A%)
18k= 47

Lost-Wax Casting Process

* Choose lower temperatures for centrifugal machines.
* As a general acception, using lower temperatures for thick designs and higher temperatures for thin designs would be recommended.

After casting cooling time for the flasks is 20 minute (for stone casting 60 minute).

Heat Treatment
1) Keep at 750 °C for 1 hour then cool immediately.
2) Keep at 400 °C for 3 hours and then cool slowly.

Keep at 700 °C for 30 min. and then cool in air.