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H型钢是一种用途广泛的经济断面的工字型钢材,它不仅标志着一个国家钢材品种的发展水平和轧制技术水平,也标志着该国的钢结构技术水平。H型钢的特点是:翼缘内外侧平行,几何断面合理,刚性大、力学性能好,既可以做梁,也可以做柱,它不仅便于机械加工和连接,用它代替普通型钢,还可以节约15％的金属材料。H型钢自从本世纪初在卢森堡Crey轧机问世后,经过50年代中期到70年代中期的迅速发展,全世界已有70多套H型钢轧机。目前,在发达国家,大型型钢大部分被H型钢所代替,特别是世界主要产钢
H-beam is a type of I-section steel with a wide range of economic sectors. It not only marks the development of steel grades in a country and the technical level of rolling, but also marks the technical level of the country’s steel structure. H-beam is characterized by: parallel to the inner and outer flanges, the geometric cross-section is reasonable, rigid, good mechanical properties, can do beams, can also do column, it is not only easy machining and connection, use it instead of ordinary steel, you can also save 15% of the metal material. Since the beginning of this century, after the advent of the Crey Rolling Mill in Luxembourg, the H-section steel industry has enjoyed over 70 H-beam mills since the mid-1950s to the mid-1970s. At present, in developed countries, most of the large section steel is replaced by H section steel, especially the world’s major steel production