Pharma Aluminum alloy heat treatment code as follow

F: Liberum statum machining (applicable to products without special requirements for work hardening and heat treatment conditions during the molding process, the mechanical properties of the products in this state are not specified)

O* :Annealed Condition (for processed products fully annealed for minimum strength)

H : Work hardening state (applicable to products whose strength is increased by work hardening. After work hardening, the product can undergo additional heat treatment to reduce the strength. The H code must be followed by two or three Arabic numerals)

W: Solution treated state (an unstable state, only applicable to alloys that are naturally aged at room temperature after solution heat treatment, hunc statum codicem solum indicat quod factum est in scaena canus naturalis)

T : Æstus curatio status (applicabilis ad products qui sunt ad stabilitatem obduruerunt post calor curatio)

T1: artificialis canus

T2: Annaeus

T4: solution curatio + naturalis velit

T5: Solutio curatio + imperfecta artificialis canus

T6: solution curatio + perficere artificialis velit

T7: Solutio curatio + curatio stabilization

T8: De statu frigoris operationis et artificialis canus post solutionem curationis

T9: De statu artificialis canus cum solutione curatio, et frigus working