Go Back   Sheetmetal Talk > Sheet Metal Forums > Finishing Metal

Finishing Metal Open discussion on finishing sheet metal products. Feel free to share knowledge of a metal finishing products and or your own proven formulas.

Share This Forum!  


Thread Tools Display Modes
Old 03-19-2016, 01:22 PM
Bradleyc1982 Bradleyc1982 is offline
Join Date: Nov 2014
Posts: 54
Thanks: 11
Thanked 0 Times in 0 Posts
Default Iron contamination.??

Hi, anyone used pickle paste?? Any tips?? Got an electrolytic cleaner to clean my tig welds but some parts are left with black/brown staining after use, was gona try pickle paste because I think its iron contamination?? Anyone have any other remedies for this?? I have attached a photo of what I'm talking about!!!! Thanks

Posted this elsewhere on the site but don't think it's the right section?!?
Attached Thumbnails
Reply With Quote
Old 12-15-2016, 11:35 PM
tinstructor tinstructor is offline
Join Date: Dec 2011
Location: midwest
Posts: 65
Thanks: 7
Thanked 12 Times in 9 Posts
Default s/s contamination ?

It looks to me to be lack of sufficient gas shield and/or excessive tungsten stickout.
It's tough to say from the photo.Is that 304/308 or type 316L stainless? And,did you use dissimilar fill rod ?
> Also, if it was welded over a second time,it will carbon precipitate and have carbon inclusions. Overheating will also cause this look.
Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -6. The time now is 11:03 PM.

Powered by vBulletin®
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.