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Old 03-03-2021, 12:46 PM
bumbino bumbino is offline
Join Date: Feb 2021
Posts: 6
the pallets came with tags. i know the manufacturer. they have three sections where they list 6150. each are cold rolled but two get heat treated. they also have a heat batch number on each tag.

They are indeed sheered from much wider plates. they are then run through chamfering type machines, stamping, more cutting and finally some rolling at times. I just can't imagine they do this with pre-hardened material. So the heat batch number is a mystery then.

What I do know for sure is that it's 6150 in great condition. I can file with a random garage file and can carve into it with a hacksaw blade. not sure how hard those are, but that's what i've got for testing. I don't have a large hard steel ball to drop on it so that's out. I found a way to bounce test with a steel ball. i have no ball.
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