tramp element การใช้

• The segregation mechanism of tramp element sn during continuous cooling and isothermal aging and its influence on the hot ductility of low carbon steel are discussed and the brittleness during continuous casting of the sn - doped low carbon steel is forecasted . at a strain rate of 10 - 2s - 1 and a cooling rate of 10 / s , there exists a third ductility trough for both steels at 750