STEEL FOR PRODUCING PARTS FOR RAILWAY, RAILWAY CROSSINGS AND SWITCHES AND METHOD FOR PRODUCING SAID PARTS.

摘要

This invention relates to a wrought steel for producing parts for railway, railway crossings or railway switches comprising (in weight percent): -0.01 - 0.15 % carbon; -at most 0.5 % silicon; -10 – 15 % manganese; -at least 0.6 to 3.95 % molybdenum; -optionally one or more of the following elements i.0.05 to 0.2 % nickel and/or ii.0.05 to 0.2 % cobalt and/or iii.0.02 to 0.30 % Cr and/or iv.0.05 to 0.2 % copper; v. at most 5 ppm H; vi. at most 0.20 % V; vii. at most 0.10 % Nb; viii. at most 0.20 % Ti and/or Zr; ix. at most 50 ppm B; x. at most 250 ppm N; xi. at most 0.2 % Al; xii. at most 0.08 % S; xiii. at most 0.08 % P; xiv. at most 1.5 % W; -and balance iron and inevitable impurities and to a method of producing the wrought steel and its use.