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Crack Televes Cast 6061

After studying the crack sensitivity curves, it is easy to recognize that most of the aluminum base alloys considered unweldable autogenously (without filler alloy addition) have chemistries at or near the peaks of crack sensitivity.

Cast
  1. Which Aluminum Alloy Bends Best? From non-heat treatable 3003 and 5052 to the heat treatable 2024, 6061 and 7075, you have many options from which to choose.
  2. See the Full Cast & Crew page for The Shawshank Redemption (1994) for examples. Be the first to contribute! Just click the 'Edit page' button at the bottom of the page or learn more in the Cast & Crew submission guide.

Aluminum Channel Pricing

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Aluminum Structural Channel 6061 T6

You guys giving heat treating advice would do well to actually learn about heat treating before giving the advice.
IF the alloy is actually 6061 that is a heat treatable aluminum. It will respond to heat treating if the user has good temperature controls and can give it the soak time at heat that it needs and quench and temper at the right temperature. Without that, there's no way you'll get consistent hardness and the likelihood is pretty high that you'll burn the aluminum which renders the whole piece useless.
Most of the hardness and stiffness you get in a piece of rolled or extruded aluminum comes from the working process itself. If you do manage to anneal a piece of rolled aluminum, you'll have a heck of a time getting the same properties back into it without pouring it into a block and rolling it out again.
It is possible to work aluminum (at least all the common alloys) around 500 degrees to soften it up a bit. That's more about making it easier to work than preventing cracks though. Making a nice gentle bend is the key to keeping the strength in the material. If you pick a big enough radius, you can go 360 degrees if you want to with no damage whatsoever.