哈氏合金的选用

Selection of Hastelloy Steel

哈氏合金是强度高、耐腐蚀性优良的金属材料,在近百年的生产和研究中不断创新与发明,在工业中得到越来越广泛的应用。合理地选用该材料,可以提高装置的寿命。该文介绍了哈氏合金的发展历史几种哈氏合金的发展由来逐步解决的有关问题,特别是不断出现的新的哈氏合金的特性,各种类型合金、成分及性能。详细介绍了常用合金的化学、机械性能和耐腐蚀性能;并介绍了哈氏合金的焊接方法。介绍了哈氏合金在化工、环保、设备制造等领域的应用及注意事项,并对哈氏合金的使用提供了建议,特别是在石化等行业对耐蚀性要求特别高的领域哈氏合金的选用。

Hastelloy, which is a high - strength steel material with excellent corrosion resistance, has been widely and increasingly applied in industries along with its continuous innovation and development in about one hundred years＇production and research. Appropriate selection of this material can extend the service life of the process units. Here described are the development history of Hastelloy, the development of several Hastelloys and problems solved in the development as well as properties, types, compositions and performances of Hastelloy steels, corrosion resistance performances, chemical and mechanical performances and welding techniques. The applications of Hastelloy steel in chemical production, environmental protection and equipment manufacturing industries and associated precautions are discussed. The steel can be selected for highly corrosive services in petrochemical industry and other special services.