在俄罗斯,目前大结构金属件的存在数量(如桥梁、高架桥、吊链、各种压力容器、化学容器及长输管线等)已超过10亿吨。其中,焊接结构有8亿吨,绝大部分在有腐蚀等恶劣条件存在的环境下工作,50％～60％的工件已经超过了设计的使用服役期。本文就石油天然气工业领域中的设备、管道等大型结构件的机械腐蚀强度及腐蚀的监控问题进行探讨。 In Russia, at present, the existing number of large structural metal parts (such as bridges, viaducts, hanging chains, various pressure vessels, chemical vessels and long-distance pipelines) have exceeded 1 billion tons. Among them, there are 800 million tons of welded structures, the vast majority of corrosion and other harsh conditions exist in the environment, 50% to 60% of the workpieces have exceeded the design of the use of service. This article discusses the mechanical corrosion strength and corrosion monitoring of large structural parts such as equipment and pipes in the oil and gas industry.