The difference between welding treatment

Carbon has a negative impact on the corrosion resistance of stainless steel pipes. Especially for stainless steel that needs to be welded, the corrosion resistance of low carbon 316 L stainless steel after welding is lower than that of 316 stainless steel. I thought I could get it. Good corrosion resistance, 316 stainless steel welded section needs to be solution annealed after welding. If 316 L stainless steel is used, solution annealing is not required after soldering.
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Corrosion resistance difference

The 316 L stainless steel pipe is more resistant to corrosion and is suitable for areas with strong corrosion such as the sea. In addition, 316 stainless steel pipe is not recommended to consider the previous conditions

Difference in scope of use

In most cases, 304 stainless steel pipe is sufficient for the application. Due to the high price of 316L stainless steel pipe, the use of 316L stainless steel pipe is about 1.5 times that of 304 stainless steel pipe in terms of material cost. Therefore, the use of 316L steel pipe should be customized.