Corrosion cracking failure analysis of 304 stainless steel flange connection d……
The 304 stainless steel flange fastening double-headed stud under the safety valve at the top of the gas separation tank in the process of service corrosion cracking, through macroscopic examination, chemical composition testing, metallographic analysis, scanning electron microscopy and energy spectrum analysis, etc., the 304 stainless steel double-headed stud cracking causes were analyzed. The results show that there are two main reasons for the cracking of the stud, one is that the material is not qualified, Cr content is lower than the standard value; the second is due to more S, Cl elements in the coastal industrial atmosphere, resulting in […]