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  1. #11
    Join Date
    Mar 2007
    ****inson ND


    309L, It's not an issue of try 309L. It's an issue of 309L is the correct filler rod. As johny tig stated it has high chromium content. Here's an exerpt from lincols website since I'm to tired to draw on my own knoledge at the moment:

    Use 309L (including ER309LSi) when joining mild steel or low alloy steel to stainless steels, for joining dissimilar stainless steels such as 409 to itself or to 304L stainless, as well as for joining 309 base metal. CG-12 is the cast equivalent of 309. Some 308L applications may be substituted with 309L filler metal, but 316L or 316 applications generally require molybdenum and 309L contains no molybdenum.

    Hope this helps

  2. #12
    Join Date
    Feb 2007
    now in Orlando!!!!


    Preacher, here is a pic of a carbon steel with 308 ss welds, the green is potassium dichromate, this baby has been sitting outside for 6 years, I gave it a Muriatic acid bath to get the rust going, last year it had the potassium dichromate added with a little Ospho, which is phosphoric acid [like Coke only stronger] I need to run a Scotchbrite pad over the SS as it has a slight film of crud on it. Squint your eyes and move back to see the picture that is drawn. Hope this helps out a fellow 'Arteist'

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    More Spark Today Please

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