	US 12,428,699 B2
	Austenitic stainless steel foil
Mitsuharu Yonemura, Tokyo (JP); Keiichi Kimura, Tokyo (JP); Takuya Hiraga, Tokyo (JP); and Yuji Kuma, Tokyo (JP)
Assigned to NIPPON STEEL CHEMICAL & MATERIAL CO., LTD., Tokyo (JP)
Appl. No. 18/031,193
Filed by NIPPON STEEL Chemical & Material Co., Ltd., Tokyo (JP)
PCT Filed Oct. 12, 2021, PCT No. PCT/JP2021/037756 § 371(c)(1), (2) Date Apr. 11, 2023, PCT Pub. No. WO2022/080374, PCT Pub. Date Apr. 21, 2022.
Claims priority of application No. 2020-172594 (JP), filed on Oct. 13, 2020; application No. 2020-172595 (JP), filed on Oct. 13, 2020; and application No. 2021-140134 (JP), filed on Aug. 30, 2021.
Prior Publication US 2023/0407427 A1, Dec. 21, 2023
Int. Cl. C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/58 (2006.01)

CPC C21D 9/46 (2013.01) [C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/58 (2013.01); C21D 2211/001 (2013.01); C21D 2211/008 (2013.01)]

8 Claims

1. An austenitic stainless steel foil, consisting of, in mass %,

C: 0.150% or less,

Si: 1.00% or less,

Mn: 2.00% or less,

P: 0.045% or less,

S: 0.0300% or less,

Cr: 16.00 to 20.00%,

Ni: 6.00 to 10.50%,

N: 0.100% or less,

Mo: 0 to 2.50%,

Nb: 0 to 0.12%,

V: 0 to 1.00%,

Ta: 0 to 0.50%,

Hf: 0 to 0.10%,

Co: 0 to 0.50%,

B: 0 to 0.0100%,

Ca: 0 to 0.0200%,

Mg: 0 to 0.0200%,

rare earth metal: 0 to 0.0100%,

Al: 0 to 0.010%,

Ti: 0 to 0.500%,

Zr: 0 to 0.100%, and

Cu: 0 to 3.00%,

with the balance being Fe and impurities,

wherein:

in an X-ray diffraction profile obtained using CuKα radiation, a full width at half maximum Fw of a peak of a {111} plane is greater than 0.366°.