蒲学坤, 柯晓涛, 邓通武. Pilot Production of Narrow Hardenability Band Gear Steel 20CrMnTiH by 120 t Converter-LF+RH Process at Panzhihua Steel[J]. Special Steel, 2007, 28(4): 50-51.
蒲学坤, 柯晓涛, 邓通武. Pilot Production of Narrow Hardenability Band Gear Steel 20CrMnTiH by 120 t Converter-LF+RH Process at Panzhihua Steel[J]. Special Steel, 2007, 28(4): 50-51.DOI:
攀钢采用120 t转炉-130 t LF+RH-280 mm×380 mm方坯连铸-热轧工艺生产Φ25~160 mm 20CrMnTiH齿轮钢(%:0.20~0.22C、0.25~0.31Si、0
93~1.00Mn、1.03~1.15Cr、0.05~0.08Ti)。检验结果表明
钢中氧含量(10~20)×10
-6
(平均14×10
-6
)
淬透性(J
9
J
15
)带宽△HRC值≤7
机械性能和组织均符合GB/ T5216-2004标准要求。
Abstract
The φ25~160 mm round bars of gear steel 20CrMnTiH-0.20~0.22C
0.25~0.31Si
0.93~ 1.00Mn
1.03~1. 15Cr
0.05~0.08Ti were pilot-produced by 120 t converter- 130t LF+RH-280mm×380mm bloom concasting - hot rolling process at Panzhihua Steel. The examination results showed that oxygen content in steel was (10~20) ×10
-6
average14×10
-6
)
hardenability(J
9
J
15
) band width - △HRC value≤7; mechanical and structure all met the requirement of standard GB/T5216-2004.