Steel component and production method for the same

A production method for a steel component including a bent area, the method comprising:

• a step of preparing a patchwork material including a first steel sheet and a second steel sheet that are laid one on another, at least one of an overlap surface of the first steel sheet to the second steel sheet and an overlap surface of the second steel sheet to the first steel sheet including a zinc-based plating layer, the first steel sheet and the second steel sheet being continuously joined;
• a step of heating the patchwork material;
• and
• a step of performing hot stamping using press tooling on the patchwork material heated in the step of heating to form the steel component in which a joint part between the first steel sheet and the second steel sheet is disposed in the bent area, wherein
• when tout denotes a sheet thickness of a steel sheet located on an outer side in the bent area out of the first steel sheet and the second steel sheet, and tin denotes a sheet thickness of a steel sheet located on an inner side in the bent area out of the first steel sheet and the second steel sheet, tout/tin≥1.1 is satisfied,
• the joint part is disposed in a ridge portion in the bent area or at a position in a vicinity of the ridge portion, the position satisfying d/tin<2.3, where d denotes a distance from the ridge portion to the joint part in a cross-sectional view of the steel component, the ridge portion being a bent portion formed between a top wall and a side wall in the steel component and substantially forming an arc shape in a cross-sectional view of the steel component, and
• in the patchwork material before being heated in the step of heating, the melting start temperature of the zinc-based plating layer is 700° C. or less.