| 摘要 |
Provided is an electroplating steel sheet which comprises, in mass%, C: 0.0005 to 0.0050%, Si: 0.20 to 1.0%, Mn: 0.40 to 2.5%, P: 0.05% or less, Ti: 0.010 to 0.050%, Nb: 0.010 to 0.040%, B: 0.0005 to 0.0030%, S: 0.02% or less, Al: 0.01 to 0.30%, N:0.0010 to 0.01% and the remainder including iron and impurities, and has a chemical composition in which [Mn]+5[Si] is 2.0 to 7.0 where [Si] is the Si content and [Mn] is the Mn content, the sheet having a surface texture wherein in the cross-sectional profile of the surface which is obtained by measuring with 0.07 µm interval with respect to the evaluation length of 10 µm or greater, the average of a displacement of a measurement point with reference to the moving average of total successive 31 points including prior and next respective 15 points is 0.005 µm to 0.10 µm. |
