	US 12,129,535 B2
	Steel sheet for cans and method of producing same
Nobusuke Kariya, Tokyo (JP); Fusae Shiimori, Tokyo (JP); Katsumi Kojima, Tokyo (JP); and Daisuke Otani, Tokyo (JP)
Assigned to JFE STEEL CORPORATION, Tokyo (JP)
Appl. No. 17/415,733
Filed by JFE STEEL CORPORATION, Tokyo (JP)
PCT Filed Nov. 13, 2019, PCT No. PCT/JP2019/044589 § 371(c)(1), (2) Date Jun. 18, 2021, PCT Pub. No. WO2020/129482, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 2018-238544 (JP), filed on Dec. 20, 2018.
Prior Publication US 2022/0074031 A1, Mar. 10, 2022
Int. Cl. C22C 38/22 (2006.01); B21C 47/02 (2006.01); C21D 8/02 (2006.01); C21D 8/10 (2006.01); C22C 38/00 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01)

CPC C22C 38/22 (2013.01) [B21C 47/02 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/105 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C21D 2211/003 (2013.01); C21D 2211/005 (2013.01)]

2 Claims

1. A steel sheet for cans, comprising:

a chemical composition containing, in mass %, C: 0.010% or more and 0.130% or less, Si: 0.04% or less, Mn: 0.10% or more and 1.00% or less, P: 0.007% or more and 0.100% or less, S: 0.0005% or more and 0.0090% or less, Al: 0.001% or more and 0.100% or less, N: 0.0050% or less, Ti: 0.0050% or more and 0.1000% or less, and Cr: 0.08% or less, and satisfying a relationship 0.005≤(Ti*/48)/(C/12)≤0.700 where Ti*=Ti−1.5S, with a balance including Fe and inevitable impurities;

a microstructure in which a proportion of cementite in ferrite grains is 10% or less; and

an upper yield strength of 550 MPa or more.