What does the term “temper designation” of aluminum extruded material mean?
The temper of the material is determined by a combination of hardness and strength imparted to a metal by mechanical or thermal treatments and is characterized by certain metallurgical structures and mechanical properties. The temper designation system is based on the sequences of basic treatments applied to produce the various tempers — including: F – (As Extruded); O – (Annealed); H – (Strain-Hardened); and T – (Thermally Treated). The complete temper designation system is extensive and your nearby Shapemaker extruder should be consulted for complete details.
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