| 摘要 |
This steel sheet for hot stamping members has a chemical composition which contains, in mass%, 0.10-0.35% of C, 0.01-1.0% of Si, 0.3-2.3% of Mn and 0.01-0.5% of Al, while suppressing P to 0.03% or less, S to 0.02% or less and N to 0.1% or less, with the balance made up of Fe and unavoidable impurities. This steel sheet for hot stamping members has a standard deviation of the particle diameters of iron carbides of 0.8 µm or less, said iron carbides being contained in the region of the steel sheet from the surface to 1/4 the sheet thickness. |
