杨卫中, 周德光, 唐建国, et al. Research and Production of Microalloying Steel 15Mn2CrVNbE for Trigging Girder of Railway Wagon[J]. Special Steel, 2006, 27(6): 59-60.
杨卫中, 周德光, 唐建国, et al. Research and Production of Microalloying Steel 15Mn2CrVNbE for Trigging Girder of Railway Wagon[J]. Special Steel, 2006, 27(6): 59-60.DOI:
0.02~0.05Al)for trigging girder has been produced by hot metal desulphurizing -80 t LD melting-LF (feeding wire)refining - 4 strand billet concasting process at No3 steelmaking plant
Shougang. The production results (149 heats)showed that with control of Al content in steel
argon stirring
feeding silicon-caleium wire
whole course shielding casting technology
the oxygen content in billet was(7~26)×10
-6
nitrogen content was(29~79)×10
-6
and the mechanical properties of trigging girder products were σ
s
465~575 MPa
σ
b
630~720 MPa
δ₅25%~34% and -40 ℃ longitudinal impact energy 36~183 J