采用30t EBT EAF-40 t LF+VD-3.16 t铸锭-800/650×4轧机流程开发了Φ160mm非调质钢S38MnSiV(%:0.38~0.45C、0.55~0.75Si、1.40~1.55Mn、0.08~0.15V、0.020~0.050S、≤0.025P)。检验结果表明
钢材中氧含量(8~13)×10
-6
氮含量(128~186)×10
-6
氢含量(0.4~1.2)×10
-6
Φ160mm非调质钢S38MnSiV锻成Φ110mm圆钢的组织和机械性能均满足标准要求
用该钢生产的曲轴中值弯曲疲劳极限为3633.3 N·m
安全系数1.771。
Abstract
The Φ160 mm non-quenched-tempered steel S38MnSiV(0.38~0.45C
0.55~0.75Si
1.40~1.55Mn
0.08~0. 15V
0.020~0.050S
≤0.025P) has been developed by 30t EBT EAF-40tLF+VD-3. 16tingot-800/ 650×4 mill flow sheet. Examination results showed that he oxygen content in finished products was (8~13)×10
-6
nitrogen content(128~186)×10
-6
and hydrogen content(0.4~1.2)×10
-6
the structure and mechanical properties of Φ110 mm bar forged by Φ160 mm rolled products of steel S38MnSiV all met the requirement of standard; and the mean value bending fatigue limit of crankshafts made of this steel was3633.3 N ·m with safety factor 1.771.