The non-quenched-tempered S38MnSiV steel was produced By hot metal desulphurization→150 t BOF→LF+RH→CC of rectangular section(350 mm×470 mm)→800 mm mill(slow cooling of the steel)→test and storage route in BX STEEL. The oxygen content of the steel is not more than 16×10-6, the hydrogen content of the steel not more than 1.2×10-6, and the nitrogen content of the steel between 136×10-6 and 162×10-6. The macrostructure, non-metallic inclusions and the grain size of theφ160mm steel accord with the standard. The mechanical properties answer for the standard with Rm≥865 MPa,ReL≥560 MPa,Aku≥64 J.
于天忱, 宋满堂,范连明. 非调质钢S38MnSiV采用转炉-矩形坯连铸工艺的生产实践[J]. 中国冶金, 2011, 21(6): 27-30.
song mantang. Technology Practice of Non-Quenched-Tempered Steel S38MnSiV Produced by BOF- CC of Rectangular Bloom. China Metallurgy, 2011, 21(6): 27-30.