De-Ox Silver Alloy: TruSilver
(Originally published July 2017)
General Alloy Composition
927 silver and other metals
Suitable for
Casting and fabrication
Melting Temperature Range
Solidus: 1,562°F (850°C)
Liquidus: 1,610°F (875°C)
Hardness (As-Cast) (HV)
• Dwell for 15-20 minutes (after casting, before quenching): 75 HV
• No dwell (less than 3 minutes): 70 HV
Hardness (70% Cold-Work) (HV)
• Fully annealed (dead-soft) before cold working: 160 HV
• As-cast before cold working: 165 HV
• Torch annealed before cold working: 160 HV
Hardness (Age-Hardened) (HV)
• Two-step age hardness: 125 HV
• Single-step age hardness: N/A
Available Forms
Casting grain, sheet, round shaped and patterned wire, ring blanks, circles
Fusing Possible
Yes
Welding Possible
Alloy can be laser welded; tack welding is possible but results are mixed.
Quenching Guidelines
For maximum ductility, quench from black heat (after it cools from a red to orange color).
Special Tips for Working with Alloy
To increase tarnish resistance, a low-temperature heat treatment, which generates a transparent oxide on the surface, is recommended. Torch the silver until it takes on a white look.
Contact
Hoover & Strong Inc.
1-804-794-3700
info@hooverandstrong.com