Experimental Production of Non-Quenched and Tempered Steel for Grade 10.9 Fasteners
CAO Jie1,2,YAN Jun2,SUN Wei3,LIU Ya-zheng1,ZHANG Jing2,YU Tong-ren3
1. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China 2. School of Materials Science and Engineering, Anhui University of Technology, Ma’anshan 243002, Anhui, China 3. Technology Center, Maanshan Iron and Steel Co.， Ltd.，Ma’anshan 243000, Anhui, China
Abstract：In order to develop a non-quenched and tempered steel for high strength fasteners, experimental production was carried out on a high-speed wire rod mill. The microstructure and properties of the rolling products was tested. The microstructure of the steel is basically granular bainite under the given technology, the tensile strength and elongation ratio of the steel are respectively 897.5MPa and 21.8%. After drawing reduction, the steel can meet or exceed the mechanical requirement of grade 10.9 fasteners. When the drawing reduction is 25.0%, the steel can bear the compression of 59.3% without cracking.
曹杰，，阎军，孙维，刘雅政，章静，于同仁. 10.9级紧固件用非调质钢试制[J]. 钢铁, 2012, 47(1): 65-68.
CAO Jie1,2,YAN Jun2,SUN Wei3,LIU Ya-zheng1,ZHANG Jing2,YU Tong-ren3. Experimental Production of Non-Quenched and Tempered Steel for Grade 10.9 Fasteners. Iron and Steel, 2012, 47(1): 65-68.
2012, Vol. 47 
