| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydrogen embrittlement resistant pipe which has hydrogen embrittlement resistance and high strength compatibly, and prevents the rapid deterioration of functions due to the degradation of surface characteristics and the peeling of a coating, and to provide a method for producing the hydrogen embrittlement resistant pipe. SOLUTION: The material is formed of an Ni based alloy or an Fe-Ni based alloy, and includes an aged portion and a hydrogen embrittlement suppression layer exposed to hydrogen. The hydrogen embrittlement suppression layer has a value of≥0.9 by a hydrogen embrittlement index defined by a ratio between an elongation after a hydrogen charge and an elongation before a hydrogen charge, and the tensile strength of the aged portion is >1,000 MPa. COPYRIGHT: (C)2010,JPO&INPIT |
