Very-high-strength and low-density, hot-rolled steel sheet...

Details Very-high-strength and low-density, hot-rolled steel sheet... Very-high-strength and low-density, hot-rolled steel sheet...

2003-03-10

2008-08-26

Yee, Deborah (Department: 1793)

Metal treatment

Stock

Ferrous

C148S330000, C148S333000, C148S334000, C148S335000, C148S336000, C148S648000, C148S602000, C420S078000, C420S117000, C420S118000

Reexamination Certificate

active

07416615

ABSTRACT:
The invention relates to a high-resistant, low-density hot laminated sheet steel comprising the following elements expressed in weight per cent: 0.04%:9 carbon≦0.5%; 0.05%≦manganese≦3%, being able to contain hardening elements: 0.01%≦niobium≦0.1 0.01%≦titanium≦0.2% 0.01≦vanadium≦0.2%, either individually or combined, and/or elements acting on the transformation temperatures, 0.0005%≦boron≦0.005%; 0.05%≦nickel≦2%; 0.05%≦chrome≦2%; 0.05%≦molybdenum≦2%, either individually or combined, the remainder being iron and elements which are inherent to production, characterized in that it comprises: 2%≦silicon≦10%; 1%≦aluminium≦10%. The invention also relates to the production thereof.

REFERENCES:
patent: 5445685 (1995-08-01), Strum et al.
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patent: 10-25543 (1998-01-01), None
patent: 2001-254138 (2001-09-01), None
patent: 08 060305 (1996-07-01), None
patent: 10 212522 (1998-08-01), None
patent: 11-323489 (1999-11-01), None
patent: 2000-160249 (2000-06-01), None
patent: WO 93013231 (1993-07-01), None
Computer-generated English translation of Japanese patent 08-060305 dated Mar. 5, 1996, Kono Osamu et al.

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