[美国《核新闻》2004年7月刊报道]美国核管会(NRC)向所有的压水堆许可证持有者发布了一项通报,要求它们对使用合金600或者合金82和182制造的稳压器贯穿件和蒸汽空间管道连接进行检查。NRC指出,最近的经验表明,在使用上述材料制造的贯穿件上产生的一回路水应力腐蚀裂纹 [According to the July 2004 issue of the U.S. Nuclear News] The NRC issued a circular to all PWR permit holders asking them to stabilize the use of Alloy 600 or Alloy 82 and 182 Pressure vessel penetrations and steam space piping connections are inspected. NRC pointed out that recent experience has shown that a primary circuit of water stress corrosion cracking on the run-through made from the above materials