Journal of Failure Analysis and Prevention

, Volume 10, Issue 6, pp 463–467 | Cite as

A Typical Failure Analysis of Medium Carbon Hot Rolled Strips

  • A. K. Bhakat
Case History---Peer-Reviewed


Medium carbon hot rolled steels are used for wide range of engineering applications. Normally, MC 55 (C: 0.51–0.60 wt.%) grade is used in fabricating various components for automobile and textile industries. Such high-end applications demand superior steel cleanliness to eliminate risk of cracking during cold rolling/forming operations. This article attempts to identify the origin of defects obtained during cold rolling. It has been established that higher Al (~0.06%) and N (~76 ppm) contents in the steel along with excessive segregation of carbon, and the presence of inclusions such as aluminium oxides and MnS were responsible for inadequate cold reducibility, causing crack formation in the sheet material.


Medium carbon steel MC 55 Hot rolled coils Crack Hardness 



The author wishes to thank the management of the Research & Development Centre for Iron and Steel (RDCIS), the Rourkela Steel Plant (RSP), and the Steel Authority of India Limited (SAIL) for giving permission to publish this study.


  1. 1.
    Rungta, R., Skidmore, A.J., Buchheit, R.D.: Inclusion and their Influence on Material Behavior, p. 1. ASM International, Materials Park, OH (1988)Google Scholar
  2. 2.
    Vander Voort, G.F.: Inclusion and their Influence on Material Behavior, p. 49. ASM International, Materials Park, OH (1988)Google Scholar
  3. 3.
    Pradhan, M.K., et al.: Investigation of crack formation in continuous cast slabs & remedial measures taken for improving productivity at Rourkela steel plant. IIM Met. News 11(2), 8–14 (2008)Google Scholar
  4. 4.
    Brimacombe, J.K., Sorimachi, K.: Crack Formation in Continuous Casting of Steel, vol. 8, pp. 57–58. The Iron and Steel Society (1997)Google Scholar

Copyright information

© ASM International 2010

Authors and Affiliations

  1. 1.Research & Development Centre for Iron & Steel (RDCIS), Steel Authority of India Limited (SAIL)RanchiIndia

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