What's the difference between 6061 T6 and 6061 T651 aluminum?
Cold Finished/Rolled T6 is also called T651 – "Solution Heat-Treated Artificially Aged Permanent Set" Cold Finished or also called rolled material is designated as -T651 notice the extra "one" designation is missing. This applies to plate and cold finished rounds. The extra "one" is missing because the process is similar to plate.
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