| 摘要 |
In producing method for low temperature steel, the method is characterized by, its composition of 0.1-0.5 C, 0.02-1.5 Si, 16-35 Mn, 1-8 Al, 0.02-0.15 Ti, 0.05-0.15 Nb and at most 0.05 Cu, in wt.%, forming it by hot rolling at temperature of 900 deg.C and below under conditions of its integral reduction ratio of 60-90 % and finish temperature of 750-850 deg.C. In this method, Mn is a autenite forming element, Al has effects of promoting toughness and strength, Cu increases corrosion-resistance property, and Ti and Nb form fine distributed precipitates by controlled rolling. It can lowered manufacturing costs of low temperature steel by substituting cheap Mn and Al for expensive Ni and Cr.
|
