Very few manufacturers may also produce 304L or 316L stainless steel tableware - first of all, whether the brand has "L" or not has no effect on the corrosion resistance. So it is enough for us to choose 304 or 316 tableware, there is no need to choose 304L or 316L.
So what is the difference between stainless steel with "L" in the grade and stainless steel without "L"?
This is about the welding process of stainless steel: in the process of high temperature welding of stainless steel, carbides will be precipitated. The appearance of carbides on the solder joints will affect the stability of the weld - this process of precipitating carbides is called "intergranular corrosion".
In order to prevent intergranular corrosion, it is necessary to artificially reduce the carbide content of stainless steel. Stainless steel with reduced carbide content will add an "L" to the original grade.
The stainless steel with reduced carbide content has no effect on the original corrosion resistance. In other words, 304 and 304L, 316 and 316L are the same if intergranular corrosion is not considered.
Generally, in high-precision and high-risk industries, the existence of intergranular corrosion needs to be considered. For household tableware, there is absolutely no need to use stainless steel with an "L".