[China Aluminum Industry Network] F-State Aluminum Name: Free-Processing State Application: It is applicable to products that have no special requirements for work hardening and heat treatment conditions in the molding process. The mechanical properties of this state product are not specified.
O State Aluminum Name: Annealed State Uses: Applies to processed products that have been fully annealed to obtain lower strength.
H-Horizontal Aluminum Profile Name: Work Hardened State Application: Suitable for products that have been hardened by work hardening (this product can be low-strengthened by heat treatment). H-code must have two or more Arabic numerals behind it.
W State Aluminum Name:Solution Heat Treatment State Purpose: An unstable state, only applicable to alloys that have been naturally aged at room temperature after solution heat treatment. This state code only indicates that the product is in the natural aging stage.
T-state aluminum profile name: heat treatment state (different from F, O, H)
Uses: Applicable to products that have undergone (or have not been) hardened to a stable state after heat treatment (this product can also be work-hardened). The T symbol must be followed by more than one digit of Arabic.
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