How To Weld Stainless Steel Rod. 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. The reason why this method is preferred is because of the low heat input making it a better choice for welding thinner pieces.
Has a flux coating that provides smooth arc transfer. Ad 304 Stainles Steel Has Good deep drawing properties and very good high gloss polishability. What welding rod do I use to weld stainless to mild steel.
Type 409 is available as metal cored wire and Type 430 is available in all forms.
The reason why this method is preferred is because of the low heat input making it a better choice for welding thinner pieces. So thats it about welding stainless steel to mild steel. It is recommended to use a 309L when you are joining stainless steel with a more milk steel which includes carbon steel. What Is the Best Welding Rod for Stainless Steel.