Comparative Analysis of Domestic Standard of Steel Boiler Pipes with ASME Standard and Development Orientation

Following higher steam temperature and pressure as required for the supercritical and ultra-supercritical generation sets of thermal power plants,the requirements for properties of steel boiler pipes acting as key materials for the boiler are more stringent.And the standard and technical conditions of the materials are the carrier of application thereof.Compared with relevant ASME standard,there exists a huge gap between the ASME standard and the domestic boiler pipe standard in terms of standard system,standard level and standardization of new materials.Therefore,it is concluded that one of the major possible development orientations of domestic steel boiler pipe standard is to establish complete domestically-applicable standard system for boiler service steel pipes,to enhance standard level and to promote the localization of new type boiler-purpose steel,which is also very important to the development of home-made supercritical thermal power generation sets.