Removing heat marks

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Author Message Austen Morefielo (Atm98) New member Username: Atm98 Post Number: 1 Registered: 9-2009 Posted on Wednesday, September 23, 2009 - 11:57 am:    Hello. I am having some Stainless 316 Heli-arc welded. Is there a way to chemically remove the carbon/heat mark that remains after welding? I tried scotch bright pads. They work but I do not like the look of the resulting marks. Unfortunately this in not a project I can spend a lot of time on. Any Ideas? Mr. Gale Timmins (Toolsteel) New member Username: Toolsteel Post Number: 2 Registered: 10-2010 Posted on Thursday, October 07, 2010 - 12:24 pm:    I'm new to this site, but have you tried sodium bisulfate? It's a "pickle" solution I've used to remove heat marks from copper. You can find it in bulk at places like Home Depot. It's used to treat swimming pools and is dirt cheap.