Ferritic stainless steel sheet with excellent workability...

Details Ferritic stainless steel sheet with excellent workability... Ferritic stainless steel sheet with excellent workability...

2006-04-11

2006-04-11

Yee, Deborah (Department: 1742)

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

C148S651000, C148S537000

Reexamination Certificate

active

07025838

ABSTRACT:
A ferritic stainless steel sheet for use in automobile fuel tanks and fuel pipes having smooth surface and resistance to organic acid is provided. The sheet contains, by mass, not more than about 0.1% C, not more than about 1.0 Si, not more than about 1.5% Mn, not more than about 0.06% P, not more than about 0.03% S, about 11% to about 23% Cr, not more than about 2.0% Ni, about 0.5% to about 3.0% Mo, not more than about 1.0% Al, not more than about 0.04% N, at least one of not more than about 0.8% Nb and not more than about 1.0% Ti, and the balance being Fe and unavoidable impurities, satisfying the relationship: 18≦Nb/(C+N)+2Ti/(C+N)≦60, wherein C, N, Nb, and Ti in the relationship represent the C, N, Nb, and Ti contents by mass percent, respectively. A process for making the same is also provided.

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Edited by R.W. Cahn, P. Haasen, E.J. Kramer, “Materials Science and Technoogy, vol. 7, Constitution and Properties of Steels”, 1992, VCH, Weinheim XP-002196998, pp. 53-54, 82-83 & 305.

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