H形鋼えいちがたこうalso: エッチがたこうMeanings1nounH-section steel; H beam; rolled steel jointTechnical term in construction and engineering for a steel beam with an H-shaped cross-section.このビルの骨ほね組ぐみにはH形がた鋼こうが使つかわれている。H-section steel is used in the framework of this building.