TruSilver Data Sheet
TruSilver® is a 92.5% sterling silver available in casting grain, sheet and wire products. In tarnish-resistance lab tests, TruSilver® outperformed both 935 Argentium Original and Sterling Silver. But there’s more! TruSilver® costs the same as Sterling and up to 20% less than 935 Argentium Original. TruSilver® is the true winner every time!
|TruSilver® (TS) - white alloy - 0.925 Sterling silver, copper, others|
TruSilver® is a 92.5% sterling silver alloy which has tarnish resistant properties 4–5 times that of traditional Sterling silver. 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. When investment cast, TruSilver® is fire scale resistant and has a tarnish resistance 4-5 times better than traditional Sterling. TruSilver® compliments Hoover & Strong’s new Palladium Sterling alloy. TruSilver® can be hallmarked as Sterling silver.
TruSilver® offers the following benefits over traditional sterling silver:
Recommended Uses: TruSilver® is suited for all general fabrication techniques. It has improved tarnish resistance.
|PRODUCT FORMS AVAILABLE:|
|Casting grain||Quick Order - same day shipping|
|Sheet||Quick Order - 8-30 gauge, 3rd day shipping|
|Round Wire||Quick Order - 8-30 gauge, 3rd day shipping|
|Patterned Wire||Quick Order - 3rd day shipping|
|Shape Wire||Quick Order - 3rd day shipping|
|High volume orders typically ship in five days depending on inventory. Other product forms can be made to order. Minimums may apply and may have associated manufacturing charges|
|Melting Range||1562° - 1610°F (850°-875°C)|
|Density||5.46 Troy ozs/in³|
|Hardness||75HV as cast
125HV as heat treated
160HV hard rolled
|Working||For best results, H&S recommends TruSilver® is reduced by a minimum of 50% section thickness/area between anneals.|
|Annealing||If using a furnace, anneal between 950 and 1100ºF (510 - 595ºC) for 10 – 30 minutes, depending on size. If using a torch, heat to dull red. This alloy may be quenched into a suitable medium after annealing.|
|Age Hardening||To solution treat, heat to 1250ºF (677ºC) for 10-30 minutes, depending on size, then water quench. Follow this with either 400ºF (204ºC) for 3 - 4 hours, or 650ºF (343ºC) for 2 hours then air cool.|
|Investment Casting||TruSilver® can be cast using standard gypsum bonded investments. A 50% new metal mix is preferred. Recommended casting temperature: 1796 - 1850ºF (980 - 1010ºC) Recommended flask temperature: 900 - 1250ºF (485 - 640ºC) Temperatures may differ from these recommendations depending on processing considerations.|
|Soldering||Standard soldering techniques may be used with TruSilver®. The use of H&S silver solders is recommended.|
|Pickling||Sodium Bisulfate (Sparex) or heated 10%Nitric 90%Water|
|Finishing||Treat as standard sterling silver|
TruSilver® does not contain germanium. We have found issues with germanium as a versatile element for both casting and mill products, the biggest issue being reusability. The inclusion of germanium in tarnish resistant silver alloys also significantly increases the cost.
If using a torch with TruSilver for annealing or balling, the type of flame to use is important. There are three types of flame:
The third "reducing flame" produces the best results when torch annealing or balling.
After torch annealing, immerse the work piece for a few seconds in pickle to remove any copper oxide blackening.
For balling, dip the work piece in an acid, rinse and then dip in a flux of methyl alcohol and boric acid. This procedure results in perfect balling with no blackening.
Like most tarnish resistant silver alloys, Trusilver does not respond well to tacking operations.