Soft-nitriding steel, as well as processes for the preparation thereof and soft nitriding steel components

摘要

In mass%, this soft-nitriding steels, C: 0.15% and less than 0% or more, Si: 0.01~1.00%, Mn: 0.01~1.00%, S: 0.0001 1.50% or less and ultra-0.50%, N:: ~0.050%, Al: 0.0001~0.050%, Ti and containing 0.0005 to 0.0100%, the balance being Fe and inevitable consists impurities, P: 0.050% or less, O: and and limited to 0.0060% or less Ti content and [Ti%], C and the amount of [C%], N and the amount of [N%], S amount and [S%] but, 0.48 [Ti%] - to satisfy the ≦ 1.20 ([S%] / 32 [N%] / 14+ [C%] / 12+) 47.9 ×.