Martensitic steel with nitrogen at a low carbon content and its manufacturing process.

摘要

P martensitic stainless steel, comprising: & br / - of 0,5 to 0,85% by weight of carbon + nitrogen br / b - of 0,15 to 0,24% by weight of nitrogen (br / c - of 0 to 0,50% by weight of silicon (br / d - of 0 to 0,70% by weight of manganese (br / e - of 0 to 0,50% by weight of nickel & br / f - of 14 to 17% by weight of chromium: & br / g - from 1 to 2,5% by weight of molybdenum, & & br / h - of 0,10 to 0,70% by weight of vanadium br / the remaining fraction consisting of iron and residues and the respective contents of each of these elements being determined so as to limit the content of residual austenite to a value less than 10% by volume. / p