SS 201 Stainless Steel Round Pipe

316L stainless steel pipe is a kind of pipe widely used in construction projects. The shape of the tube is a long circular hollow steel tube. Mechanical equipment, petrochemical equipment, medical equipment, food and light industry pipeline or mechanical parts will use 316L stainless steel pipe.
316 L stainless steel is low in carbon and easy to weld, so the price of 316 L stainless steel pipe is more expensive than 316 stainless steel pipe, but there is not much difference.
The tensile strength of 316 stainless steel tube is higher than that of 316 L stainless steel tube. The tensile strength of 316 stainless steel pipe is higher than 520 MPa~(316 L) stainless steel pipe. The tensile strength of 316 stainless steel pipe is only greater than 480 Mpa. This is because carbon is a strong austenitic forming element, which can significantly improve the strength of stainless steel tubes.
The cost difference between 316 L stainless steel and 316 stainless steel is not big, and the corrosion resistance and weldability of 316 L stainless steel are obviously better than ordinary 316 stainless steel. From the producer's point of view, stainless steel factories are reluctant to produce because of the low demand for ordinary 316 stainless steel. So the actual circulation in the market is basically low-carbon 316 L stainless steel, generally 316 stainless steel is rarely sold, unless there is a specific demand.
Carbon has a negative effect on the corrosion resistance of stainless steel tubes. Especially for stainless steel that needs welding, 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 welding section after welding solution annealing treatment. If 316 L stainless steel is used, solution annealing after welding is not required.