Pharma Aluminum alloy heat treatment code as follow

F: Gratis bewerkingstoestand (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, hierdie toestandskode dui slegs aan dat die produk in die natuurlike verouderingstadium is)

T : Hittebehandeling toestand (van toepassing op produkte wat gewerk is tot 'n stabiele toestand na hittebehandeling)

T1: kunsmatige veroudering

T2: Gebonde

T4: oplossing behandeling + natuurlike veroudering

T5: Oplossingsbehandeling + onvolledige kunsmatige veroudering

T6: oplossing behandeling + volledige kunsmatige veroudering

T7: Oplossingsbehandeling + stabiliseringsbehandeling

T8: Die toestand van koue werk en kunsmatige veroudering na oplossingsbehandeling

T9: Die toestand van kunsmatige veroudering na oplossingsbehandeling, en dan koud werk