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• API 5L pipeline pipe
• X52 steel plate surface quality standards that need to be met
• The basic production process of API 5L X60 pipeline steel
• The key to Q460D steel welding process
• What does the heat treatment of Q690 Steel include?
• Reasons for choosing Q690D steel

Difference between 316L stainless steel plate and 316 stainless steel

The main difference between national standard 316L and American Standard 316L stainless steel plate: nickel content and carbon content are different.

Comparison between national standard 316L stainless steel plate and American Standard 316L stainless steel plate: difference of nickel content. The national standard stipulates that the Ni content of 316L stainless steel plate is 12 ~ 15%. According to the American Standard, the Ni content of 316L is 10 ~ 14%, that is, the nickel content in the national standard is more than 12 and that in the American standard is more than 10.

Most of the existing 316L stainless steel plate on the market are produced according to American standards. As the price of nickel determines the price of stainless steel, individual steel mills generally limit the Ni content of products to the lower limit as far as possible for cost consideration. According to the minimum standard, there is a difference of 2% in Ni content between American Standard and Japanese standard, which is reflected in the price.

Comparison of 316L stainless steel plate and 316 stainless steel: difference of carbon content. The upper limit of C content of 316 is 0.08%, while the upper limit of C content of 316L stainless steel plate is 0.03%. In addition to the same characteristics as 316 stainless steel, 316L stainless steel plate has better intergranular corrosion resistance. It can be used in applications that cannot be annealed after welding and require maximum corrosion resistance. As the current refining technology has been very mature, we can well reduce the content of C.