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发明公开
CN110494581A 两片罐用钢板及其制造方法 有权

两片罐用钢板及其制造方法
摘要：
本发明的两片罐用钢板的特征在于，以质量％计，含有C：0.010％以上且小于0.030％、Si：0.04％以下、Mn：0.10％以上且小于0.40％、P：0.02％以下、S：0.020％以下、Al：超过0.030％且为0.100％以下、N：0.0005％以上且小于0.0030％、B：0.0005％～0.0030％，剩余部分由Fe和不可避免的杂质构成，以BN的形式存在的N量([N as BN])和总N量([N])满足下述数学式(1)，屈服点超过280MPa且小于420MPa，屈服伸长率为3％以下，Δr为－0.30～0.20。[N as BN]/[N]＞0.5…(1)。
摘要（英）：

The steel sheet for a two-piece can according to the present invention is characterized by containing, in mass%, not less than 0.010% but less than 0.030% of C, not more than 0.04% of Si, not less than 0.10% but less than 0.40% of Mn, not more than 0.02% of P, not more than 0.020% of S, more than 0.030% but not more than 0.100% of Al, not less than 0.0005% but less than 0.0030% of N, and 0.0005-0.0030% of B, the remaining portion being Fe and incidental impurities, wherein the amount of N ([N as BN]) existing as BN and the total amount of N ([N]) satisfy mathematical formula (1), and the steelsheet has a yield point of more than 280 MPa but less than 420 MPa, a yield elongation of 3% or less, and a [delta]r of -0.30 to 0.20. The formula (1) is [N as BN]/[N]>0.5.

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