Features of 316L stainless steel
There is a material in our jewelry material called 316L stainless steel. Many people do n’t know what material 316L stainless steel is. The technical staff of Foshan Keke Jewelry Co., Ltd. and the name and everyone explain:
316L is a stainless steel grade, AISI 316L is the corresponding US label, and sus 316L is the corresponding Japanese label. China's unified digital code is S31603, the standard grade is 022Cr17Ni12Mo2 (new standard), and the old grade is 00Cr17Ni14Mo2, indicating that it mainly contains Cr, Ni, Mo, and the number indicates the approximate percentage. The national standard is GB / T 20878-2007 (current version).
Corrosion resistance:
316L is widely used in the chemical industry because of its excellent corrosion resistance. 316L is also a derivative steel type of 18-8 austenitic stainless steel with 2 to 3% Mo element added. On the basis of 316L, many steel grades are derived, for example, 316Ti is derived after adding a small amount of Ti, 316N is derived after adding a small amount of N, and 317L is derived after increasing the content of Ni and Mo.
Most of the existing 316L on the market is produced in accordance with the American standard. For cost considerations, steel mills generally try to lower the Ni content of products as much as possible. The American standard stipulates that the 316L Ni content is 10 to 14%, while the Japanese standard stipulates that the 316L Ni content is 12 to 15%. According to the minimum standard, there is a 2% difference in Ni content between the American standard and the Japanese standard, which is still quite huge in terms of price. Therefore, customers still need to see clearly when purchasing 316L products. Whether the products refer to ASTM or JIS standards.
The Mo content of 316L makes this steel has excellent pitting corrosion resistance, and can be safely applied to environments containing Cl- and other halogen ions. Because the main application of 316L is its chemical properties, steel mills have slightly lower requirements for surface inspection of 316L (relative to 304), and customers with higher surface requirements should strengthen surface inspection.
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Foshan Keke Jewelry Co., Ltd. is a professional jewelry manufacturer using 316L stainless steel. It is China's top jewelry manufacturer, custom fashion jewelry manufacturer, best jewelry manufacturer, custom fashion jewelry manufacturer!
