Steel for nitrocarburizing, nitrocarburized steel part, and producing method of nitrocarburized steel part

A steel for nitrocarburizing, consisting of, by mass %:

• C:
• 0% to 0.067%;
• Si:
• 0.01% to 1.00%;
• Mn:
• 0.29% to 1.00%;
• S:
• 0.0001% to 0.050%;
• Al:
• 0.0001% to 0.050%;
• Ti:
• more than 0.50% to 1.50%;
• N:
• 0.0005% to 0.0100%;
• at least one of
• Cr:
• 0.01% to less than 0.30%;
• Mo:
• 0.01% to 1.00%;
• V:
• 0.005% to 0.50%;
• Nb:
• 0.005% to 0.10%;
• Cu:
• 0.05% to 2.00%;
• Ni:
• 0.05% to less than 2.00%;
• or
• B:
• 0.0005% to 0.0050%;
• and
• a balance consisting of Fe and inevitable impurities,
• wherein P is limited to 0.050% or less;
• O is limited to 0.0060% or less;
• and
• an amount of Ti [Ti %], an amount of C [C %], an amount of N [N %], and an amount of S [S %] satisfy 0.48<[Ti %]−47.9×([C %]/12+[N %]/14+[S %]/32)≦1.20.