Ti and Cr contained microalloy construction steel wire rod and production method thereof

• Main Authors: ZHANG YINGGANG, DENG TONGWU, LEI XIUHUA, LIU MING
• Format: Patent
• Language: Chinese; English
• Published: 02.03.2018
• Subjects: ALLOYS; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention belongs to the field of steel and iron metallurgy, and in particular, relates to a Ti and Cr contained microalloy construction steel wire rod and a production method thereof. Aiming at the problems of low nitrogen content and few types of vanadium nitride alloys selected by traditional nitrogen-contained alloy steel, the invention provides the Ti and Cr contained microalloy construction steel wire rod and the production method thereof. The wire rod comprises the following components in percentage by weight: 0.15-0.30% of C, 0.30-1.00% of Si, 0.60-1.30% of Mn, 0.0060-0.0180% of N,P not more than 0.040%, S not more than 0.040%, 0.010-0.050% of Ti, 0.10-0.60% of Cr, and the balance of Fe and inevitable impurities. The key point of the preparation method is that N-contained corespun yarns are fed in a small platform after a furnace; and N is adjusted to a proper level. The method is simple in operation, is high and stable in nitrogen yield, can effectively reduce the production cost, and deserves po