Study on the mechanical properties and service life of H13 mandrels |
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| Authors: | TIAN Yuxin LU Minghe CAI Haiyan ZHANG Jinghai GUO JunxiaSpecial Steel Technology Center Research Institute Baoshan Iron & Steel Co Ltd Shanghai China |
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| Affiliation: | TIAN Yuxin,LU Minghe,CAI Haiyan,ZHANG Jinghai and GUO JunxiaSpecial Steel Technology Center,Research Institute,Baoshan Iron & Steel Co.,Ltd.,Shanghai 200940,China |
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| Abstract: | The microstructures and mechanical properties of H13 mandrels made by Baosteel and foreign companies were investigated in this study.Based on the comparison research,the processes were optimized,such as steelmaking,heat treatment and multiple forging processes.The quality of Baosteel mandrels was greatly improved by increasing the homogenizing of an annealing temperature and refining processes.The results of the pilot trial showed that the average number of piercing steel tubes for Baosteel mandrels was ove... |
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| Keywords: | H13 mandrel steel mechanical properties service life |
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