| 摘要 |
Steel for nitrocarburizing includes, by mass%, C: 0% to less than 0.15%; Si: 0.01% to 1.00%; Mn: 0.01% 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%; and the balance consisting of Fe and inevitable impurities, in which P is limited to 0.050% or less; O is limited to 0.0060% or less; and the amount of Ti [Ti%], the amount of C [C%], the amount ofN [N%], and the amount of S [S%] satisfy 0.48 < [Ti%] - 47.9 × ([C%] /12 + [N%] / 14 + [S%] 32) ‰¤ 1.20. |
