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What are the properties of Master Alloys?
What advantages would I get in using SPANGLE Master Alloys for Casting Jewelery application ?
What advantages would I get in using SPANGLE Master Alloys for Hand-Made Jewelery application ?
What kind of jewelry can the master alloys be used for?
Can the alloys be used to make Jewelery of intermediate caratage, for eg. 21 ct. ?
What does the melting temperature of Alloyed Gold mean?
What are the factors determining the prices of Master Alloys?
One cant manufacture jewelry or any other article from pure gold or pure silver metal because they are very soft. Master alloys are mainly used to impart desired hardness to gold / silver for manufacturing jewelry or articles of different purity i.e. caratage; for example: 10carat [41.66%], 14carat [58.33%], 18carat [75%], 22carat [91.6%] etc. Please note that for lower purity the master alloy shall have the property of softness and as the purity increases the precious metal [gold / silver] increases which are soft and therefore the softening property of the master alloys should be reduced. THIS IS THE BASIC AND FOREMOST USE OF MASTER ALLOYS. Please note that the metal composition of the master alloys could vary as per the requirements.
What are the properties of Master Alloys?
The master alloys impart the desired color to the gold. The popular colors are: Yellow different shades i.e. pale, bright, reddish etc., White, Red, Pink and also for Green.
Tarnishing Resistance: All master alloys contain deoxidizers which protects the gold / silver articles from tarnishing.
In case of cast jewellery it imparts good casting properties like fluidity, form filling ability, porosity control, smooth surface finish, better shining, minimum polishing loss etc.
In case of cold working application like wire drawing or clod pressing like sheet making, it imparts good ductility, fine grain structure to the metal that gives better surface finish and also helps achieving breakage free cold working.
What advantages would I get in using SPANGLE Master Alloys for Casting Jewelery application?
Following are the advantages in using SPANGLE Master Alloys for Casting Jewellery application over the primitive method of mixing only Silver and Copper :
1. Ensures good filling properties for most of the filigree tree designs.
2. Ensures zero levels of gas and shrinkage porosity.
3. Ensures consistency in quality in all the batches of Casting.
4. The cast meterials can be recycled without compromising on the quality of the end materials.
5. Ensures great surface finish which in order minimizes labor for finishing the end jewelery which in turn reduces material loss.
What advantages would I get in using SPANGLE Master Alloy for Hand-made Jewelery application ?
Following are the advantages in using SPANGLE Master Alloys for Hand-Made Jewellery application over the primitive method of mixing only Silver and Copper :
1. The grain refiners present in the SPANGLE Master Alloys ensures a large number of smooth annealing operations involved in making of hand-made jewelery.
2. Ensures fine grain struture in the end Jewelery for very good surface finish.
3. Ensures minimum loss of material at the various stages of the Cold Working operation.
4. Imparts the right amount of malleability coupled with the required toughness needed in the end Jewelery.
What kind of jewelry can the master alloys be used for?
The SPANGLE master alloys can be used for ANY kind of gold and Silver Jewelery right from 9 to 23 caratage. The alloys can be used for applications in gold jewelery, silver jewelery, for cadium free soldering, for making fine chains, for imparting colors like yellow, white, red, pink, green gold jewelery and many more.
Can the alloys be used to make Jewelery of intermediate non-standard caratage, for eg. 21 ct. ?
Yes, they can be very much used for making jewelery of intermediate non-standard caratage. We recommend, that in case of Casting application, the Master Alloy should be used of LOWER standard caratage for the intermediate non standard caratage jewelery. In the example here, we recommend to use master alloy of 18 caratage for making casting jewelery of 21 caratage.
In case of Hand-made Jewelery, we recommend to use master alloy of HIGHER standard caratage for the intermediate non standard caratage jewelery. In the example here, we recommend to use master alloy of 22 caratage for making hand-made jewelery of 21 caratage.
What does the melting temperature of the Alloyed Gold mean?
Alloyed Gold mean the mixture of the Master Alloys with the pure Gold. The melting temp of the Alloyed Gold mean the melting temp of the Pure Gold mixed with the Master Alloys of that particular caratage.
Please Note: For Casting applications, the melting temperature of the Alloyed Gold is approximately 100-150 degree celsius MORE than the temperature mentioned in the Products table. This depends upon various factors like the size of the tree, design of the Jewelery, fluidity of the Alloyed Gold, etc.
What are the factors determining the prices of Master Alloys?
The most important determining factor of the prices is the percentage quantity of the Silver content in the Master Alloys. The cost of Silver is as per the global Markets and hence the final price of the Master Alloys varies accordingly.
