Heat resisting ferritic stainless steel excellent in low tempera

Details Heat resisting ferritic stainless steel excellent in low tempera Heat resisting ferritic stainless steel excellent in low tempera

1992-11-16

1994-04-12

Yee, Deborah

Metal treatment

Stock

Ferrous

420 69, C22C 3822, C22C 3820

Patent

active

053022149

ABSTRACT:
A heat resisting ferritic stainless steel which comprises, by weight, up to 0.03% of C, from 0.1 to 0.8% of Si, from 0.6 to 2.0% of Mn, up to 0.006% of S, up to 4% of Ni, from 17.0 to 25.0% of Cr, from 0.2 to 0.8% of Nb, from 1.0 to 4.5% of Mo, from 0.1 to 2.5% of Cu, and up to 0.03% of N, and optionally one or more of appropriate amounts of Al, Ti, V, Zr, W, B and REM, the balance being Fe and unavoidable impurities, wherein the alloying elements are further adjusted so that the ratio of Mn%/S% is not less than 200, [Nb] defined by the equation: [Nb]=Nb%-8 (C%+N%) is not less than 0.2, and (Ni%+Cu%) is not more than 4. The stainless steel according to the invention is suitable for use in constructing an exhaust gas path-way of an automobile, particularly, a path-way from an engine to a converter, which is exposed to high temperatures, and which requires an improved low temperature toughness and a high resistance to weld cracking due to high temperatures.

REFERENCES:
patent: 5110544 (1992-05-01), Sato et al.

Affiliated with

Also associated with

Rating

Heat resisting ferritic stainless steel excellent in low tempera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heat resisting ferritic stainless steel excellent in low tempera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heat resisting ferritic stainless steel excellent in low tempera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2095842