S925PT is a master alloy for 925‰ silver jewelry, designed as an all-purpose formulation. This formulation can be alloyed from title 925‰ to title 935‰.
S925PT is suitable for continuous casting and for ingot casting of semi-finished items such as sheet and wire. The alloy can also be used for lost-wax casting in closed systems.
The main processes in which S925PT can be used are massive and hollow chain production, stamping and TIG tube production.
S925PT has the highest level of grain refining among the Ag-Q line alloys, this makes it suitable for all those complex processes where machining of hollow tube or hollowing are required.
The hardness of 925‰ silver alloyed with S925PT can be increased by means of a heat treatment. Please refer to the technical chart for information on the correct age-hardening procedure.