近年来,我国进口压力容器中,奥氏体不锈钢压力容器占很大比例,从河南省1996～1999年统计看,共进口377台压力容器,其中奥氏体不锈钢制压力容器177台,占46.9%。在对其进行安全性能监督检验过程中,经渗透探伤检测,部分设备的焊缝和热影响区附近及母材,均发现存在有表面裂纹现象。值得注意的是,按照国外有 In recent years, China imported pressure vessels, austenitic stainless steel pressure vessels account for a large proportion of statistics from 1996 to 1999 in Henan Province, a total of 377 pressure vessels were imported, of which 177 sets of austenitic stainless steel pressure vessels, accounting for 46.9 %. In its safety performance supervision and inspection process, the penetration testing, some of the equipment and welding heat-affected zone near the base metal and found that there are surface cracks. It is noteworthy that, according to foreign countries