| 摘要 |
<p>A steel sheet for two-piece battery cans which has moldability excellent enough to permit the thickness of the side body of a can to be reduced by drawing and ironing and, when formed into cans, preferably possesses a high can strength and excellent secondary work embrittlement resistance and corrosion resistance. The steel sheet contains S and O (O: total oxygen content) so as to satisfy the requirements of S: 0.005 to 0.015 wt.%, preferably 0.005 to 0.012 wt.%, O: 0 to o.0025 wt.%, [S/10+0] ≤ 0.0035 (wt.%), preferably, [S/10+0] ≤ 0.0030 (wt.%), and preferably further contains B in an amount of 0.0005 to 0.0015 wt.% so as to satisfy the requirement of 0.2 ≤ B/N ≤ 1.0, or alternatively, at most 0.10 wt.% in total of at least one member selected among Cr: 0.03 to 0.10 wt.% and Ni: 0.01 to 0.10 wt.%. When it is desirable to ensure particularly excellent corrosion resistance, at least Ni plating or Fe-Ni alloyed plating is formed on both sides of the steel sheet.</p> |
