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I use it regularly. I can tell you it has high molybdenum content, in addition to higher carbon content. It also self heat treats if you are not careful. Finally I’d suggest only abrasive cutting. I have a Makita dry cut and I dare not touch the stuff.

As far as welding, a little preheat goes a long way.

Stuff gets a bad rap. It just takes a little attention to work with.

If you drill it, lots of oil on sharp bits is all you need. I’ve also torch heated a spot to temporarily anneal it to drive a bit through.

Price is right. And it’s darn hard and strong. My first welded fabrication was a weight rack and it’s held 400 pounds for 40 plus years.

 

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yeap, scrap metal (not even steel, just random metals in general most likely). Since the vast majority of that stuff doesn't need to be welded to make bed frames, they can use the cheapest crap out there. Probably mixed with dirt & horse manure too, lol.

I’ve never experienced an manure odor

 

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At the risk of being irritating, I’d encourage practicing drill bit sharpening. Test different rake angles. Keep you rpms much lower than you would for mild steel. Then use lots of oil. Keep the bit wet continuously and maintain uniform pressure on your press. It will cut. Standard bits will suffice. However for kicks, and as suggested by another poster, you could use a masonry bit. I have tried it and it does work. But you will need to sharpen them a bit differently. Also the carbide will eventually break out because it is only soldered in.