Effects of Mo, Nb, Ti on mechanical properties and corrosion resistance of 22.5% Cr ferritic stainless steel were investigated. The results show that Mo exists in ferritic stainless steel mainly in the solution treatm...Effects of Mo, Nb, Ti on mechanical properties and corrosion resistance of 22.5% Cr ferritic stainless steel were investigated. The results show that Mo exists in ferritic stainless steel mainly in the solution treatment condition, and it can enhance steel' s strength through solid solution strengthening. In Ti + Nb dual-stabilized ferritic stainless steel, the steel's toughness decreases obviously because coarse TiN particles form and some metallic compounds precipitate along the grain boundaries. In Nb single-stablized ferritic stainless steel, Nb exists either in the solution treatment condition or in the form of dispersed precipitates Nb(C, N), which will act as the nuclei of precipitation of the fine (r phase. As a result, the precipitation of the coarse σ phase along the grain boundary can be inhibited, leading to significant improvement in steel' s toughness at a low temperature. Based on these, high corrosion-resistant ferritic stainless steel B445R was developed for the building cladding system. Test results show that B445R has a superior corrosion resistance to austenitic 316 L in chloride solution. Besides, it has a good forming property and weldability. All these make it an ideal decorating material for the building cladding system in severe coastal regions.展开更多
介绍玻璃幕墙拉索用不锈钢钢绞线1×61—24.0 mm 1 420 MPa使用工况和技术要求,该钢绞线材质为06Cr17Ni12Mo2,公称直径24 mm,破断拉力489 k N,强度级别1 420 MPa,生产难度较大。评述该钢绞线用捻制设备、不锈钢丝及生产过程,生产...介绍玻璃幕墙拉索用不锈钢钢绞线1×61—24.0 mm 1 420 MPa使用工况和技术要求,该钢绞线材质为06Cr17Ni12Mo2,公称直径24 mm,破断拉力489 k N,强度级别1 420 MPa,生产难度较大。评述该钢绞线用捻制设备、不锈钢丝及生产过程,生产中要控制的关键点,成品经检测破断拉力为509 k N,高出用户要求4%,伸长率为0.3%,符合GB/T 25821—2010不大于1.5%的要求,满足用户需求。展开更多
文摘Effects of Mo, Nb, Ti on mechanical properties and corrosion resistance of 22.5% Cr ferritic stainless steel were investigated. The results show that Mo exists in ferritic stainless steel mainly in the solution treatment condition, and it can enhance steel' s strength through solid solution strengthening. In Ti + Nb dual-stabilized ferritic stainless steel, the steel's toughness decreases obviously because coarse TiN particles form and some metallic compounds precipitate along the grain boundaries. In Nb single-stablized ferritic stainless steel, Nb exists either in the solution treatment condition or in the form of dispersed precipitates Nb(C, N), which will act as the nuclei of precipitation of the fine (r phase. As a result, the precipitation of the coarse σ phase along the grain boundary can be inhibited, leading to significant improvement in steel' s toughness at a low temperature. Based on these, high corrosion-resistant ferritic stainless steel B445R was developed for the building cladding system. Test results show that B445R has a superior corrosion resistance to austenitic 316 L in chloride solution. Besides, it has a good forming property and weldability. All these make it an ideal decorating material for the building cladding system in severe coastal regions.
文摘介绍玻璃幕墙拉索用不锈钢钢绞线1×61—24.0 mm 1 420 MPa使用工况和技术要求,该钢绞线材质为06Cr17Ni12Mo2,公称直径24 mm,破断拉力489 k N,强度级别1 420 MPa,生产难度较大。评述该钢绞线用捻制设备、不锈钢丝及生产过程,生产中要控制的关键点,成品经检测破断拉力为509 k N,高出用户要求4%,伸长率为0.3%,符合GB/T 25821—2010不大于1.5%的要求,满足用户需求。