Development of SM570 H-Beam and Steel Narrow Plate

by I-Hsiang Chou

Publisher - South East Asia Iron and Steel Institute

Category - General Novel

SM570, in JIS structural steel specification, is the strongest grade (tensile strength ≧ 570 MPa) which requires high impact strength (Charpy impact absorbed energy ≧ 47 J/-5℃). Therefore, a building applying with SM570 can not only reduce the weight and the consumption of steel, but also upgrades the anti-seismic ability of structure. In Taiwan, most of SM570 steel plates and H-beam are products are used in skyscrapers, such as Taipei 101 for example, used to be the highest skyscraper (509.2 meters high) of the world during Dec. 31st 2014 to Jan. 4th 2010. Dragon Steel Corporation has developed SM570 steel narrow plate (t ≦40 mm) and H-beam (t ≦ 30 mm, up to width 900mm) products, by addition proper alloys and applying optimum temperature controlled rolling technique. With this two kind products, steel structure can be safer and more competitive due to their higher strength and lower weight.

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