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The difference between 316 and 316L stainless steel
Source:Xinsteel Date:2020/6/1
At present, there are very few 316 steel types on the market. The upper limit of C content of 316 is 0.08%, and the upper limit of C content of 316L is 0.03%. Since the current refining technology is very mature, steel mills can reduce C content very well, and the market demand for 316 is not large, so steel mills generally only produce 316L. If 316 is needed, they need to order from the steel mill.
Due to the difference in C content, 316 and 316L also have a gap in performance. The higher the C content, the easier it is to cause intergranular corrosion. Higher C content will also increase the tensile and yield strength of 316. The lower limit of tensile strength and yield strength of 316 are 515 and 205 MPa, respectively, and the lower limit of tensile strength and yield strength of 316L are 485 and 170 MPa, respectively, while the elongation and hardness are stipulated by the US standard, which are 40% and HB217.
