6063T5 VS 6063T6

Fonnov 6063T5 VS 6063T6

Engineers in general industrial and automation industry are always confused on the difference of extruded aluminum 6063T5 and 6063T6, their processing, properties and prices are all different, and which material is suitable for their production application? The aluminum extrusion manufacturer FONNOV ALUMINIUM gives you a brief introduction and comparation on the difference between the 6063t5 aluminum profile and the 6063t6 aluminum profile.

T5 is high temperature forming + artificial aging. It is cooled by a high temperature molding process and then subjected to an artificial aging state.

T6 is solution heat treatment + artificial aging. After the solution heat treatment, the state of artificial aging is performed.

Below is the mechanical properties of 6063 aluminum alloy which after T5 and T6 treatment.

Aluminium Alloy         & Temper Thickness


Tensile Strength
Yield Strength
Elongation /%


6063-T5 ≤3.00 175 130 65
>3.00-25.00 160 110 7 65
6063-T6 ≤10.00 215 170 75
>10.00-25.00 195 160 8 75

Although the two tempers are different in definition, there is not much difference between the 6063 alloys, but mainly reflected in the difference in mechanical properties. T5 is generally air-cooled and naturally cooled during quenching in aluminium profile plants. T6 is cooled by water to cool the aluminum material instantaneously, so that the aluminum profile can reach higher hardness requirements. T6 temper is obvious with higher mechanical properties in strength, elongation and hardness, and its price is also higher than the price of T5.

Considering the usage of your final product, if the material requirement on strength and hardness are relatively high, the temper of T6 can be selected, and if no any special requirement on strength and hardness, the temper of T5 can be selected.

FONNOV ALUMINIUM provides users with a quality extruded aluminum profiles for both building construction and general industry. Welcome visit our site: https://www.fonnovaluminium.com, and contact Fonnov Aluminium at: marketing@fonnov.com.cn

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By | 2019-04-22T08:45:51+00:00 March 12th, 2019|Aluminium Extrusion|0 Comments