What is the effect of directly welding carbon steel to stainless steel on the stainless steel?
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1. A corner steel ring is added to the outside of the stainless steel container. Is it possible to weld carbon steel corner rings directly onto the stainless steel container? I don’t want to use a stainless steel gasket. 2. For the stainless steel inner cylinder, with a carbon steel jacket – can the jacket be welded directly to the inner cylinder? I have done all of these things in practice; these carbon steels are welded to the outer surface of the stainless steel cylinder. What impact does this have on the stainless steel cylinder? Will it affect the corrosion resistance of the stainless steel cylinder against internal media?
The outer reinforcement ring does not come into contact with the medium, so it has no impact. It’s usually steam in the jacket, and that’s no problem.
The jacket area is prone to cracking. . . :Lol, you can find several such examples on this forum. .
If the temperature and pressure of the operating medium are not high, this approach can be used. I’m not sure whether it was designed that way, or if the equipment manufacturer failed to provide you with connection plates – poor quality
There are special electrodes (A302) for welding stainless steel and carbon steel. Wuxi Xuelang Metal Chemical Equipment Factory specializes in manufacturing stainless steel reactors and other equipment. Website: www.hgzysb.cn
The impact is minimal, but care should be taken regarding the type of welding rod used. When welding carbon steel and stainless steel, a stainless steel welding rod must be used; ordinary welding rods do not work well for welding stainless steel, as it tends to crack easily
For welding dissimilar steels, it is essential to conduct weldability tests; through these tests, the most reliable welding process can be determined to ensure the quality of the welded joints.
The impact won’t be significant, but stainless steel welding rods must be used for welding. Prevent carburization.