The present status of H steel for construction machines, the development of H steel in the localization of materials for transferred technology from Komatsu, Japan and Caterpillar, USA, and the future developing trend are presented in this article.

• 介绍工程机械用H钢的现状,消化引进日本小松公司和美国卡特彼勒公司工程机械制造技术材料国产化中H钢的研制、应用,以及今后的发展趋势。