Bainitic steel materials having a less scattering of properties

Details Bainitic steel materials having a less scattering of properties Bainitic steel materials having a less scattering of properties

1997-11-28

1999-05-04

Yee, Deborah

Metal treatment

Stock

Ferrous

148320, 148624, 148654, C22C 3812, C21D 800

Patent

active

059000767

ABSTRACT:
This invention provides bainite steel materials having a less scattering of properties in a thickness direction or between steel materials by using a chemical composition of C: not less than 0.001 wt % but less than 0.030 wt %, Si: not more than 0.60 wt %, Mn: 1.00-3.00 wt %, Nb: 0.005-0.20 wt %, B: 0.0003-0.0050 wt % and Al: not more than 0.100 wt % and rendering not less than 90% of the material into a bainite texture in steel materials such as thick steel plates, steel sheets, section steels, rod steels and the like.

REFERENCES:
patent: 4210445 (1980-07-01), Kasamatsu et al.
"Tetsu-to-Hagane", vol. 74, No. 6, "On the Yield Ratio of the Structural Steel Used for Building Frames", pp. 11-21, Ben KATO Jul. 7, 1998.

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