Austenitic stainless steels for press forming

Details Austenitic stainless steels for press forming Austenitic stainless steels for press forming

1996-03-25

1997-11-11

Yee, Deborah

Alloys or metallic compositions

Ferrous

Nine percent or more chromium containing

420 58, 420 61, C22C 3842, C22C 3844, C22C 3806

Patent

active

056860447

ABSTRACT:
An austenitic stainless steel for press forming has considerably excellent deep drawability and bulging property as compared with those of the conventional one, which comprises C: 0.01-0.10 wt %, Si: not more than 1.0 wt %, Mn: not more than 3.0 wt %, Ni: 6.0-10.0 wt %, Cr: 15.0-19.0 wt %, Cu: 1.0-4.0 wt %, Al: 0.2-2.5 wt %, N: not more than 0.05 wt %, and if necessary, Mo: 0.03-3.0 wt % and B: 0.0010-0.020 wt %, and is adjusted to satisfy anyone of Ni equivalent: 21.0-23.0, crystal grain size number (N) of not less than 8, cleanness of 0.020%, low Si content and (C+N) amount .gtoreq.0.04.

REFERENCES:
patent: 3376780 (1968-04-01), Tancyzn
Patent Abstract of Japan, vol. 94, No. 0010, Oct. 11, 1996.
Patent Abstract of Japan, vol. 16, No. 273 (C-0953), Jun. 18, 1992.
Patent Abstract of Japan, vol. 16, No. 277 (C-0954), Jun. 22, 1992.
European Search Report and Annex, May 14, 1996.
English Language Abstract of JP-B-51-29854, Aug. 27, 1976.
English Language Abstract of JP-B-1-40102, Aug. 25, 1989.
English Language Abstract of JP-A-3-169405, Jul. 23, 1991.

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