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The points need attention to purchase 316L stainless steel steel plate

316L stainless steel is widely used in chemical industry because of its excellent corrosion resistance. 316L stainless steel is a derivative of 18-8 type austenitic stainless steel. 2-3% molybdenum is added to the stainless steel material. On the basis of 316L stainless steel, a lot of steel grades were also derived, such as 316Ti stainless steel derived from adding a small amount of titanium, 316N stainless steel derived from adding a small amount of nitrogen, 317L stainless steel derived from increasing the content of nickel and molybdenum.

At present, most of spot 316L stainless steel is produced in accordance with American Standard. From the cost point of view, the steel plant usually reduces the nickel content of the 316L stainless steel product as far as possible. According to the US standard, the nickel content of 316L stainless steel is about 10-14%, while the Japanese standard stipulates that the nickel content of 316L stainless steel should reach about 12-15%. According to ultra-low standards, there is a 2% gap between the U. S. standard and Japanese standard in the content of Ni, reflected in the spot price gap is very large, so in the purchase of 316L stainless steel products, you need to check carefully that whether the product reference is ASTM or JIS standards.

The molybdenum content in 316L stainless steel makes the steel possess excellent pitting resistance and can be safely used in Cl-containing environment. Because the main application of 316L stainless steel is its chemical properties, steel mills inspection requirements for 316L stainless steel surface are slightly lower compared with 304 stainless steel. The customers have higher surface requirements for 316L stainless steel need to strengthen the surface inspection.

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