Hot-rolled steel sheet

A hot-rolled steel sheet comprising, as a chemical composition, by mass %,

• C:
• 0.04% to 0.18%,
• Si:
• 0.10% to 1.70%,
• Mn:
• 0.50% to 3.00%,
• Al:
• 0.010% to 1.00%,
• B:
• 0% to 0.005%,
• Cr:
• 0% to 1.0%,
• Mo:
• 0% to 1.0%,
• Cu:
• 0% to 2.0%,
• Ni:
• 0% to 2.0%,
• Mg:
• 0% to 0.05%,
• REM:
• 0% to 0.05%,
• Ca:
• 0% to 0.05%,
• Zr:
• 0% to 0.05%,
• P:
• limited to equal to or less than 0.050%,
• S:
• limited to equal to or less than 0.010%, and
• N:
• limited to equal to or less than 0.0060%, with the remainder including Fe and impurities;
• wherein a structure includes, by area ratio, a ferrite and a bainite in a range of 75% to 95% in total, and a martensite in a range of 5% to 20%, and
• wherein in the structure, in a case where a boundary having an orientation difference of equal to or greater than 15° is defined as a grain boundary, and an area which is surrounded by the grain boundary and has an equivalent circle diameter of equal to or greater than 0.3 μm is defined as a grain, the ratio of the grains having an intragranular orientation difference in a range of 5° to 14° is, by area ratio, in a range of 10% to 60%.