摘要
本钢采用＂铁水脱硫扒渣→150t转炉冶炼→（LF＋RH）精炼→矩形坯连铸（350 mm×470 mm）→800 mm棒材连轧机组（轧材保温）→检验入库＂生产工艺流程,生产的非调质钢S38MnSiV,钢材中氧质量分数不大于16×10^-6、氢质量分数不大于1.2×10-6、氮质量分数在136×10^-6-162×10^-6范围内;φ160 mm圆钢的低倍、非金属夹杂物、晶粒度等级均符合标准要求;力学性能达到Rm≥865 MPa,ReL≥560 MPa,Aku≥64 J,满足标准要求。
The non-quenched-tempered S38MnSiV steel was produced by hot metal desulphurization→150t 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 the 160 mm steel accord with the standard.The mechanical properties answer for the standard with Rm≥865MPa,ReL≥560MPa,Aku≥64J.
出处
《中国冶金》
CAS
2011年第6期27-30,共4页
China Metallurgy
