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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Removing mill scale from HR steel
Is there a chemical method to removing mill scale? I'm working with 14ga and
removing mill scale is just time consuming and generally not a fun job. I hit it with a stone disc to get the majority of it off & then flapdisc to desired finish. Among other problems is that heat generated from the stone & flapdiscing will sometimes warp the piece. Anyone know of a chemical method? How about muriatic acid? Do they make a "stripper" chemical for steel? Alternatively, I hope to buy a blasting gun & cabinet soon, what kind of media should I use to remove mill scale? Would walnut shells do the trick or will I need something harsher? Thanks to those who responded to my clearcoating question. -Tom |
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