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Prices based on London PM Fix (Last Updated: October 18, 2017)

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Palladium .950 Casting Tips

‘The Look of Platinum’


 Palladium casting grain gives you the look of platinum at a fraction of the price.  Palladium is once again gaining popularity in the manufacturing of wedding bands.

Alloy Name:

PDCG/ Palladium .950 white

Alloy Color:

Grade 1, premium white color (YID color chart)

 

 

Product Forms Available:

Casting grain, a selection of mill products including flat sheet, round wire, sizing stock, square wire, half-round wire, and findings.

Recommended Uses:

Palladium .950 is suitable for all general casting and fabrication techniques. It can withstand high levels of deformation between anneals. This alloy does not require rhodium plating.

Processing Recommendations:

Working:

For best results, G&S recommend palladium .950 is reduced by a Minimum of 50% area/section thickness between anneals.

Annealing:

If using a furnace, anneal between 1500° - 1650°F (815 - 900°C) for 15 – 30 minutes depending on size. If using as torch, heat to an orange color. This alloy can be quenched after annealing.

Investment Casting:

Melting range: 2462 - 2516°F (1350 - 1380°C).


Casting temperature range: 2820 - 2910°F (1550 - 1600°C).
Flask temperature range: 1250 - 1350°F (675 - 730°C).
Investment type: Platinum (phosphate bonded).
Cover gas: Argon.

Palladium .950 must be cast using similar techniques to platinum alloys due to the high melting range of the alloy.

Sprues and gates must be typical of those used for platinum castings.

Palladium .950 must be melted under an argon protective atmosphere to prevent gas absorption. It is recommended that induction casting equipment with a sealed melt chamber be used. Ideally the melt chamber should be vacuumed after loading the charge, and then back-filled with argon. If an open crucible is used; care must be taken to ensure complete cover with argon. While it may be possible to successfully cast Palladium .950  using a torch, results cannot be guaranteed. Temperatures may differ from these recommendations depending on processing considerations. After casting, the flask may be quenched and de-vested once the button has returned to black heat.

Final de-vesting may use techniques standard to platinum alloy processing.

Soldering:

Standard soldering techniques may be used with Palladium .950

Recommended Solders

G&S palladium hard, medium and easy solder.

Material Properties

Melting range: 2462 - 2516°F (1350 - 1380°C).
Specific gravity: 11.84
Density: 6.24 troy ozs/in³
Hardness: Cast – 115 HV
Annealed – 105HV
Hard – 180HV

 

* Multiply the Wax Factor times the weight of the wax model with sprues or multiply times the weight of the wax tree. Add Approximately 30% for the button weight.

 

Jewelry Tips for Palladium .950


Some jewelers have inquired if this alloy could be marketed as non-allergic. This is a gray area and although it is nickel free, it wouldn't be prudent to market it as “hypo-allergenic.”

Palladium casting grain is a white metal that, like Platinum, enhances the beauty of set diamonds and gemstones.  Because its’ white color is natural and not the result of plating or alloying, Palladium’s white has great depth and luster.

Palladium casting grain is similar to Platinum in color, strength, purity, preciousness and tarnish.  The major difference between Palladium and Platinum is cost, with up to a 40% cost savings over Platinum, Palladium is great option to consider.

Jewelry Tips for Finishing a 14K Palladium White Casting


 If you are having issues with fine scratches and are not accomplishing the finishing look that you desire, try using Ultra-Vest Maxx by Ransom and Randolph.

 

Palladium Tips!

 

Palladium needs care

Like other precious metals, palladium will need sprucing up from time to time. 

Simply use a mild detergent or ammonia solution (one part ammonia to six parts water) and a soft bristle brush to gently clean inside intricate designs and under gemstones. 

Rinse and wipe your jewelry after cleaning.

Palladium Jewelry with Gemstones and Other Precious Metals

If you’ve purchased a piece of jewelry that combines palladium with gemstones or other precious metals, in most cases the cleaning tips above still apply. A mild detergent or ammonia solution works equally well on palladium jewelry that contains diamonds, rubies and sapphires, or that is paired with platinum and yellow or white gold.

Important

If your palladium jewelry is set with pearls or paired with silver, you must take extra care. Both silver and pearls are very delicate.

NEVER clean pearls in gem or jewelry cleaning solutions. They could dissolve! Polish pearls with a soft, lint-free cloth. However, the best way to maintain the beauty of your palladium and pearl jewelry is to wear it regularly. The natural oils on your skin help maintain a pearl's luster.

NEVER use ammonia to clean palladium jewelry that has been combined with silver. Silver is much softer and easier to scratch, so ammonia can damage it. Instead, follow the manufacturer’s instructions for delicately cleaning silver.