肖尧. Development and Application Performance of 500 MPa Nb-Ti Microalloying High Strength Steel 510CL for Auto Wheel[J]. Special Steel, 2018, 39(6): 62-65.
肖尧. Development and Application Performance of 500 MPa Nb-Ti Microalloying High Strength Steel 510CL for Auto Wheel[J]. Special Steel, 2018, 39(6): 62-65.DOI:
The 5. 0 mm strip of developed tested steel 510CL (/% : 0. 08C
0. 07Si
1. 25Mn
0. 008P
0. 005S
0. 023Nb
0. 018Ti) is produced by semi-steel desulphurization- 200 t top and bottom combined blowing converter-LF-230 mm x 1 650 mm slab casting-continuous rolling process. In order to ensure the better welding performance of wheel steel
the 500 MPa high strength wheel steel is developed by low carbon Nb-Ti microalloying combined TMCP ( Thermo-Mechanical Control Process) technology. The hole-expansion rate of tested steel is more than 100%
the welding performance is better
the cold-forming performance and the fatigue life of steel all meet the user technical index
and after application the test steel is up to design requirement.