High strength thick steel material and high strength giant H-shape excellent in toughness and weldability and methods of production of same

22 The present invention provides a high strength thick steel material excellent in toughness and weldability reduced in amount of C and amount of N, containing suitable amounts of Si, Mn, Nb, Ti, B, and O, having contents of C and Nb satisfying C-Nb/7.74≦0.004, having a density of Ti-containing oxi...

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Bibliographische Detailangaben

Hauptverfasser:	Yoshida, Suguru, Kita, Hiroshi, Okumura, Teruhisa, Sugiyama, Hirokazu, Wakatsuki, Teruyuki
Format:	Patent
Sprache:	eng
Online-Zugang:	Volltext bestellen
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