Quality Identification Methods of 316 Stainless Steel in Foreign Trade

Q1: What simple methods can be used to identify 316 stainless steel on site? A1: Simple methods include magnet test (316 is almost non-magnetic, 304 is weakly magnetic) and drug test (304 turns red, 316 turns black).

Q2: What professional instruments can be used to detect 316 stainless steel? A2: XRF spectrometer can be used to detect the content of molybdenum, chromium, nickel and other elements to confirm whether it meets the standard of 316 stainless steel.

Q3: How to identify the authenticity of 316 stainless steel through product marks? A3: Regular products should be marked with steel grades, such as 316 corresponding to 0Cr17Ni12Mo2 and 316L corresponding to 022Cr17Ni12Mo2, which can be verified according to the marks.

Q4: What third-party testing methods can be used in foreign trade orders? A4: Third-party institutions can be entrusted to conduct component analysis, corrosion resistance testing and other projects to issue test reports to ensure product quality.

Q5: What are the common fake phenomena of 316 stainless steel in the market? A5: Common fake phenomena include marking 304 as 316, reducing the content of molybdenum and nickel, and using inferior raw materials to produce products that do not meet the standard.