Over the years I've heard it asserted many times that bed frame iron is real low-grade steel. Well, with steel prices so high I've taken to hauling home unwanted bed frames and scrapping them for the light angle iron. I find that they make light projects well, thus they are well suited for people with time on their hands.
I need to bolt a piece of angle to a wooden floor dolly so the angle is oriented vertically. I decided to try slicing the angle and bending the "ears" out 90°. I freehanded the slice on the VBS using a V-block right by the blade and sliding the stock on the V-block, and got a real nice cut right down the center of the angle. The stuff is light, less than 1/8", so I took it over to the bench vise, clamped it and bent over an ear.
It cracked almost off.
OK. When I was punching this stuff using a manual punch I noticed it was a lot harder than mild steel. Now I think it's almost like spring steel, except of course that it doesn't want to bend. I think there's carbon in it, and that it's heat treated.
I know for beans about metallurgy. The stuff spark tests quite a bit differently than mild steel too. Sparks spread out more, much shorter trails, many more bursts.
Wonder if they save money on bed frames by using less steel but by using steel that can be heat treated for toughness. The funny thing is I didn't think it bent any less if it were hardened, thought that would stay the same. I'm not sure I believe that anymore.
Comments?
GWE