S925PTA is a ready-to-use silver alloy at title 935‰, designed as an all-purpose formulation. S925PTA is the 935‰ alloyed version of the S925PT master alloy. S925PTA granules are carefully prepared by using high purity silver (99.99%) through a special deoxidizing process, maximizing the alloy quality. S925PTA 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 S925PTA can be used are massive and hollow chain production, stamping and TIG tube production. S925PTA 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 S925PTA 935‰ silver can be increased by means of a heat treatment. Please refer to the technical chart for information on the correct age-hardening procedure.