Hot stamped body

A hot stamped body having a chemical composition comprising, by mass %,

• C:
• 0.40 to 0.70%,
• Si:
• 0.01 to 1.30%,
• Mn:
• 0.05 to 3.00%,
• P:
• 0.100% or less,
• S:
• 0.0100% or less,
• N:
• 0.0200% or less,
• O:
• 0.0200% or less,
• Al:
• 0.001 to 1.000%,
• Cr:
• 0.01 to 1.00%,
• Nb:
• 0 to 0.200%,
• Ti:
• 0 to 0.200%,
• Mo:
• 0 to 1.00%,
• B:
• 0 to 0.1000%,
• Co:
• 0 to 4.00%,
• Ni:
• 0 to 3.00%,
• Cu:
• 0 to 3.00%,
• V:
• 0 to 3.00%,
• W:
• 0 to 1.00%,
• Ca:
• 0 to 1.000%,
• Mg:
• 0 to 1.000%,
• REM:
• 0 to 1.000%,
• Sb:
• 0 to 1.000%,
• Zr:
• 0 to 1.000%,
• Sn:
• 0 to 1.000%,
• As:
• 0 to 0.100%, and
• balance:
• Fe and impurities, and
• a metallographic structure comprising, by volume ratio, martensite in 90% or more, wherein
• an average grain size of former austenite grains is 3.0 μm or less,
• a standard deviation in grain size distribution of former austenite grains is 1.5 μm or less, and
• a difference of a maximum value and a minimum value in a Vickers hardness distribution in a sheet thickness direction is 35% or less of an average value of the Vickers hardness distribution.