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Medium White For Making 9-18 Karat White Fabrication Alloy - Otto Frei

Ultra White For Making 10-18 White Multi-Purpose Alloy-Per Troy Ounce (20 DWT)

Part # 846-103
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$8.50 - $8.50
$8.50
$8.50 - $8.50
$8.50
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by Otto Frei

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Product Details

This ultra white fabrication alloy is nickel based. Contains no gold. Contains no silver. Suitable for making white gold alloy from 10K to 18K. This is a multi-purpose casting and fabrication alloy. Sold by the troy ounce (20 DWT).

 

Contents:

Cu 63%

Ag 0%

Zn 17%

Ni 19.5%

 

Note: There are proprietary metals in the formulation which are not included in the composition section.

 

 

You should obtain excellent results by following a few simple instructions.
We do recommend pre-alloying all alloy and fine gold with aggressive stirring & fluxing to assure a uniform mixture.

 

Step : 1 

Pre- Alloying (Fine gold + alloy) Temperature 1090C - 1100C / 1994F - 2030F

Step : 2

Casting Temperature for 10K Alloyed Grain 1085C - 1105C / 1985F - 2021F

Casting Temperature for 14K Alloyed Grain 1025C- 1045C /  1877F- 1913F

Casting Temperature for 18K Alloyed Grain  995C - 1015C /  1832F - 1859F

 

 

 

NOTES: Melt temperature may vary with type of unit. This alloy is designed for casting and fabrication application.

 

Flask Temperature: Normal recommended temperature in the range of 540 C to 675 C / 1004° F – 1247° F depending on size of flask, karat & type of jewelry.

Fluxing white gold is extremely important to pick-up oxides. Boric Acid is the recommended flux. Do not use carbon fluxes or any fluxes designed for refining; i.e., soda ash, saltpeter, etc. Avoid flux in bottom pour automatic casting units.

Quench Time: 25 minutes.

Investment Removal: Most standard investment removers will successfully remove the investment powder. Use of aggressive acids causes stress corrosion and surface damage and is therefore not recommended.
 

Removal: We recommend a 70% fresh - 30% scrap mix. White gold alloy has about 1/3 the reusability of yellow gold alloys.

 

 





California Prop 65 Warning:
This product can expose you to chemicals including nickel, which is known to the State of California to cause cancer. For more information go to www.P65warnings.ca.gov.

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