Procedure to improve the relationship elástico to tenacity of a steel. (Machine-translation by Google Translate, not legally binding)

摘要

Process for improving the elastic limit to tenacity ratio of a steel, characterized in that a high yield strength steel is produced which essentially contains from 4 to 12% nickel, from 0.1 to 0.7% aluminum, no more than 0.0025% nitrogen, up to 0.2% carbon, up to 1.5% molybdenum, up to 10% cobalt approximately, up to 0.5% chromium and the remainder being iron, with normal impurities, said steel is heated to the austenitization temperature of the order of 816º C to 1,205º C; it is tempered from the austenitization temperature; it is reheated to the austenitizing temperature of the order of 788 to 871º C, tempered and aged for more than one hour at a temperature of the order of about 4-27 to 566º C. (Machine-translation by Google Translate, not legally binding)