Steel sheet and enameled product
Abstract
A steel sheet includes, as a chemical composition, by mass %: C: 0.0050% or less; Si: 0.050% or less; Mn: 0.007% to 1.00%; P: 0.020% to 0.200%; S: 0.005% to 0.050%; Al: 0.010% or less; O: 0.0100% to 0.1000%; Cu: 0.010% to 0.060%; N: 0.0050% or less; Cr: 0.010% to 1.00%; one or two of Sn: 0.010% to 1.00% and Sb: 0.010% to 1.00%: 0.11% or more in total; one or more selected from the group consisting of B, Ni, Nb, As, Ti, Mo, Se, Ta, W, La, Ce, Ca, and Mg: 0% to 0.100% in total; and a remainder: Fe and impurities, in which, in a case where a Sn content in mass % is denoted by [Sn], a Sb content in mass % is denoted by [Sb], and a P content in mass % is denoted by [P], Expression (1) is satisfied, and a tensile strength obtained in a tensile test performed in accordance with JIS Z2241:2011 is 340 MPa or more.
Claims
exact text as granted — not AI-modified1 . A steel sheet comprising, as a chemical composition, by mass %:
C: 0.0050% or less; Si: 0.050% or less; Mn: 0.007% to 1.00%; P: 0.020% to 0.200%; S: 0.005% to 0.050%; Al: 0.010% or less; O: 0.0100% to 0.1000%; Cu: 0.010% to 0.060%; N: 0.0050% or less; Cr: 0.010% to 1.00%; one or two of Sn: 0.010% to 1.00% and Sb: 0.010% to 1.00%: 0.11% or more in total; one or more selected from the group consisting of B, Ni, Nb, As, Ti, Mo, Se, Ta, W, La, Ce, Ca, and Mg: 0% to 0.100% in total; and a remainder: Fe and impurities, wherein, in a case where a Sn content in mass % is denoted by [Sn], a Sb content in mass % is denoted by [Sb], and a P content in mass % is denoted by [P], Expression (1) is satisfied, and a tensile strength obtained in a tensile test performed in accordance with JIS Z2241:2011 is 340 MPa or more,
2.
≤
(
[
Sn
]
+
[
Sb
]
)
/
[
P
]
≤
11.5
.
(
1
)
2 . The steel sheet according to claim 1 ,
wherein the [Sn], the [Sb], and the [P] satisfy Expression (2),
2.3
≤
(
[
Sn
]
+
[
Sb
]
)
/
[
P
]
≤
11.
.
(
2
)
3 . The steel sheet according to claim 1 ,
wherein a yield stress or a 0.2% proof stress obtained in the tensile test is 240 MPa or more.
4 . The steel sheet according to claim 2 ,
wherein a yield stress or a 0.2% proof stress obtained in the tensile test is 240 MPa or more.
5 . The steel sheet according to claim 1 ,
wherein the steel sheet is a cold-rolled steel sheet.
6 . The steel sheet according to claim 1 ,
wherein the steel sheet is a steel sheet for vitreous enameling.
7 . The steel sheet according to claim 5 ,
wherein the steel sheet is a steel sheet for vitreous enameling.
8 . An enameled product comprising:
the steel sheet having the chemical composition according to claim 1 .
9 . The enameled product according to claim 8 ,
wherein a tensile strength obtained in a tensile test performed in accordance with JIS Z2241:2011 is 310 MPa or more.
10 . The steel sheet according to claim 2 ,
wherein the steel sheet is a cold-rolled steel sheet.
11 . The steel sheet according to claim 3 ,
wherein the steel sheet is a cold-rolled steel sheet.
12 . The steel sheet according to claim 4 ,
wherein the steel sheet is a cold-rolled steel sheet.
13 . The steel sheet according to claim 2 ,
wherein the steel sheet is a steel sheet for vitreous enameling.
14 . The steel sheet according to claim 3 ,
wherein the steel sheet is a steel sheet for vitreous enameling.
15 . The steel sheet according to claim 4 ,
wherein the steel sheet is a steel sheet for vitreous enameling.
16 . The steel sheet according to claim 10 ,
wherein the steel sheet is a steel sheet for vitreous enameling.
17 . The steel sheet according to claim 11 ,
wherein the steel sheet is a steel sheet for vitreous enameling.
18 . The steel sheet according to claim 12 ,
wherein the steel sheet is a steel sheet for vitreous enameling.
19 . An enameled product comprising:
the steel sheet having the chemical composition according to claim 2 .Join the waitlist — get patent alerts
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