Development of High Strength Hot Rolled Steel to Be Applied for Flanging Deformation 982372
A 50 kg/mm2 tensile strength level and an extremely high flangeability were achieved in a developed steel. The steel had a base chemistry of C=0.04%, Mn=0.85%, Nb=0.015%, and S=0.001%, and was processed with a hot rolling finishing temperature of 860 °C and a coiling temperature of 550 °C. This high flangeabilty was attained by reducing S content below 0.002%, as well as reducing carbon content. Elongation results could not be directly correlated to the flangeability of steel. A steel's flangeability has been found to be associated with microvoid distribution in the “as punched” condition. The developed steel exhibited the lowest density, and the smallest size, of microvoid.
Citation: Kobayashi, H., "Development of High Strength Hot Rolled Steel to Be Applied for Flanging Deformation," SAE Technical Paper 982372, 1998, https://doi.org/10.4271/982372. Download Citation
Author(s):
Hiroshi Kobayashi
Pages: 17
Event:
International Body Engineering Conference & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
1998 Ibec Proceedings Volume 2: Body Materials-P-331, SAE 1998 Transactions - Journal of Materials & Manufacturing-V107-5
Related Topics:
Tensile strength
Steel
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