Palladium Sterling Information Sheet
| PALLADIUM + STERLING SILVER (SPD) - white alloy - 0.925 silver, copper, palladium |
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Palladium Sterling is a 92.5% sterling silver alloy which contains 3.0% palladium to give your jewelry that little extra edge. It has been formulated to perform to the highest standards for all jewelry applications and can be cast, formed and fabricated just like traditional sterling silver. Palladium enhances the luster of your sterling silver jewelry and gives your pieces added value. Palladium sterling has been formulated for optimum tarnish resistance. Palladium Sterling compliments Hoover & Strong’s new Karatium Sterling alloy – KTS – for jewelers who want to work in sterling silver but who want the extra prestige these alloys give to their creations. Palladium Sterling can be hallmarked as sterling. Recommended Uses: SPD is suited for all general fabrication techniques. It is intrinsically harder than standard sterling silver and has improved tarnish resistance. |
| PRODUCT FORMS AVAILABLE: |
| Casting grain | same day shipping |
| Sheet | specifications - Supplied in even gauges from 8-30, 3rd day shipping |
| Round Wire | specifications - Supplied in gauges from 1-24, 3rd day shipping |
| Flat Wire | specifications - Made to order as a special, MFG charges may apply |
| Square Wire | specifications - Made to order as a special, MFG charges may apply |
| Half Rd Wire | specifications - Made to order as a special, MFG charges may apply |
| Bezel Strip | specifications - Made to order as a special, MFG charges may apply |
| PROPERTIES: |
| Melting Range | 1690° - 1705°F (920°-930°C) |  |
| Specific Gravity | 10.45 | |
| Density | 5.51 Troy ozs/in³ | |
| Hardness | 80HV as cast 80HV annealed 160HV hard rolled |
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| Elongation | 40% + |
| PROCESSING RECOMMENDATIONS: |
| Working | For best results, H&S recommends SPD is reduced by a minimum of 50% section thickness/area between anneals. |
| Annealing | If using a furnace, anneal between 950° and 1200°F for 10 – 30 minutes, depending on size. If using a torch, heat to cherry red. This alloy may be quenched into a suitable medium after annealing. Note: SPD can be over-annealed resulting in excessive grain growth and low hardness values. |
| Investment Casting | SPD can be cast using standard gypsum bonded investments. Recommended casting temperature: 1780° - 1860°F (970° - 1015°C). Recommended flask temperature: 850°-1110°F (455° - 600°C). Temperatures may differ from these recommenations depending on processing considerations. |
| Soldering | Standard soldering techniques may be used with SPD. Recommended Solders: All H&S silver solders |
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All Hoover & Strong products are MADE IN AMERICA.
Hoover & Strong is a wholesale manufacturer. Please contact your local retail jewelry store to purchase our product.
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