Which elements are mainly analyzed using spectroscopy for 304 stainless steel?
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For 304 stainless steel, which elements are mainly analyzed by spectroscopy, and can it be done on-site? Why wasn’t the metallographic structure analyzed?
Generally, CR and NI analyses are done, because these are the more expensive items; cutting corners means cutting costs on these aspects
304 stainless steel, with the Chinese grade designation of 0Cr18Ni9; Cr and Ni must be present, in addition to C
Carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, molybdenum, nitrogen – these are the main ones
The general acceptance criteria relate mainly to the levels of nickel and chromium: the nickel content should be between 8-11, the chromium content between 18-21, and the manganese content 1.5. The carbon content cannot be determined using a portable spectrometer