Journal of Failure Analysis and Prevention

, Volume 19, Issue 4, pp 1067–1076 | Cite as

Chemical and Mechanical Properties of Reinforcing Steel Bars from Local Steel Plants

  • Jamiu Kolawole Odusote
  • Wasiu Shittu
  • Adekunle Akanni AdelekeEmail author
  • Peter Pelumi Ikubanni
  • Olumide Adeyemo
Technical Article---Peer-Reviewed


Steel bars are important engineering materials for structural application. In Nigeria, due to incessant building collapse occurrences, it is important to further investigate some of the mechanical and chemical properties of reinforcing steel bars produced from scrap metals in order to ascertain their compliance with the required standard. Three diameters (10, 12 and 16 mm) of the reinforcing steel bars were chosen from each of the eight steel plants (A–H). Chemical composition analyses and mechanical tests (yield strength, ultimate tensile strength and percentage elongation) were performed using optical emission spectrometer and Instron Satec Series 600DX universal testing machine, respectively. Hardness values of the samples were obtained by conversion of tensile strength based on existing correlation. The results showed that carbon contents, hardness values, yield and ultimate tensile strengths of some of the steel bars were found to be higher than the BS4449, NIS and ASTM A706 standards. The steel bar samples were also found to possess good ductility with samples from steel plants C and D. By observation, all the 12 mm steel bars from steel plants A to H met the required ASTM and BS4449 standards except samples from plant G. This study revealed that most of the investigated reinforcing steel bars have reasonable yield strength, ultimate tensile strength, ductility and hardness properties when compared with the relevant local and international standards. Therefore, they are suitable for structural applications where strength and ductility will be of paramount interest.


Reinforcing steel bars Universal tensile machine Chemical composition Mechanical properties Structural applications 



  1. 1.
    M. Jibrin, Characterization of reinforcing steel bars in the Nigeria Construction Industry, Ph.D. thesis, Department of Civil Engineering, Ahmadu Bello University, Zaria, Kaduna State (2012)Google Scholar
  2. 2.
    C. Arum, Verification of properties of concrete reinforcement bars: Nigeria as a case study. Indoor Built Environ. 17(4), 370–376 (2008)CrossRefGoogle Scholar
  3. 3.
    C.B. Prabir, P. Shylamoni, A.D. Roshan, Characterization of steel reinforcement for RC structure: an overview and related issues. Indian Concr. J 78, 19–30 (2004)Google Scholar
  4. 4.
    J.K. Odusote, A.A. Adeleke, Analysis of properties of reinforcing steel bars: case study of collapsed building in Lagos, Nigeria. J. Appl. Mech. Mater. 204–208, 3052–3056 (2012)CrossRefGoogle Scholar
  5. 5.
    A.G.F. Alabi, L.I. Onyeji, Analysis and comparative assessment of locally produced reinforcing steel bars for structural purposes. USEP: J. Res. Civ. Eng. 7, 49–60 (2010)Google Scholar
  6. 6.
    A.G.F. Alabi, R. Yahya, Comparative assessment of some commercial steel bars with standard. J. Res. Inf. Civ. Eng. 9, 73–83 (2012)Google Scholar
  7. 7.
    A.A. Adeleke, J.K. Odusote, Evaluation of mechanical properties of reinforcing steel bars from collapsed building sites. J. Fail. Anal. Prev. (2013). Google Scholar
  8. 8.
    J.O. Osarewenmwinda, E.C. Amuchi, Quality assessment of commercially available reinforced steel rods in Nigeria market. J. Emerg. Trends Eng. Appl. Sci. 4(4), 562–565 (2013)Google Scholar
  9. 9.
    A.G.F. Alabi, O. Akintunde, J.K. Odusote, A.A. Adeleke, Assessment of suitability of Nigerian made steel bars for structural application. J. Ass. Prof. Eng. Trinidad Tobago 44(2), 17–23 (2016)Google Scholar
  10. 10.
    A.A. Adeleke, J.K. Odusote, P.P. Ikubanni, O.A. Lasode, O.O. Agboola, A. Ammasi, K.R. Ajao, Dataset on the evaluation of chemical and mechanical properties of steel rods from local steel plants and collapsed building sites. Data Brief 21, 1552–1557 (2018)CrossRefGoogle Scholar
  11. 11.
    P.P. Ikubanni, A.A. Adediran, A.A. Adeleke, K.R. Ajao, O.O. Agboola, Mechanical properties improvement evaluation of medium carbon steel quenched in different media. Int. J. Eng. Res. Afr. 32, 1–10 (2017)CrossRefGoogle Scholar
  12. 12.
    A.A. Adeleke, P.P. Ikubanni, A.A. Adediran, O.O. Agboola, T.S. Olabamiji, O.J. Ogunsola, C. Ibeawuchi, Tensile strength and micro-structural behaviour of medium carbon steel quenched in some selected media. Int. J. Civ. Eng. Tech. 9(10), 2148–2156 (2018)Google Scholar
  13. 13.
    P.P. Ikubanni, O.O. Agboola, A.A. Adediran, A.A. Adeleke, B.T. Ogunsemi, T.S. Olabamiji, D.C. Uguru-Okorie, C.O. Osueke, Experimental Data on mechanical properties evaluation of medium carbon steel quenched in different waste media. Data Brief 20, 1224–1228 (2018)CrossRefGoogle Scholar
  14. 14.
    Specification for steel bars for reinforcement of concrete. Nigeria industrial standard NIS 117-1992, Standard Organization of Nigeria (SON), Abuja, NigeriaGoogle Scholar
  15. 15.
    Nigerian Industrial Standard (NIS), Specification for Steel Bars for the Reinforcement of Concrete (Standard Organization of Nigeria (SON), Abuja, 2004)Google Scholar
  16. 16.
    Standard Table Correlating Tensile Strength and Hardness of Steel, (n.d.). (2017) Retrieved May 13, 2018, from
  17. 17.
    E. Roberts, A. Reza, Physical Metallurgy Principles, 3rd edn. (PWS-KENT Publishing, Boston, 1992)Google Scholar
  18. 18.
    K. Serope, R. Schimid, Manufacturing Engineering and Technology, 2nd edn. (Person education, South Asia Pte LTD, Singapore, 2006)Google Scholar
  19. 19.
    B. Sambo, E. David, A. Samson, B. Olatunde, Challenges of producing quality construction steel bars in West Africa: case study of Nigeria Steel Industry. J. Miner. Mater. Charact. Eng. 8, 283–292 (2009)Google Scholar
  20. 20.
    K. Charles, M. Adom-Asamoah, Strength and ductility characteristics of reinforcing steel bars milled from scraps metals. Mater. Des. J. 23, 537–545 (2002)CrossRefGoogle Scholar
  21. 21.
    R. Higgins, Engineering Metallurgy, Part 1: Applied Physical Metallurgy, 6th edn. (England: Edward Arnold Bodmin, Cornwall, Ch. 7 1993), pp. 11–18Google Scholar
  22. 22.
    M. Kutz, Role of Alloying Elements in Steel. Hand Book of Materials Selections (Kutz Myer Associates, Wiley, New York, 2002)CrossRefGoogle Scholar
  23. 23.
    British Standard (BS4449), (1997) Available from Jentayu: Accessed 12 Mar 2018
  24. 24.
    American Standard (ASTM), A 706, Metals, Test Methods and Analytical Procedures, Metal-Mechanical Testing; Elevated and low-temperature Tests: Metallographic (1990). Accessed 12 Mar 2018
  25. 25.
    H. Bachmann, T. Wenk, Ungeniigende duktilitat beim bewehrungsstahl (Insufficient Ductility of Reinforcing Steel). Sch. Ing. Arch. J. 29(7), 544–551 (1998)Google Scholar
  26. 26.
    R. Higgins, Engineering Metallurgy (Viva Books Private Limited, New Delhi, 2004)Google Scholar
  27. 27.
    A.J. Apeh, Assessment of mechanical properties of reinforcing steel used in construction works at F.C.T., Abuja. Int. J. Eng. Res. Tech. 2(6), 2346–2358 (2013)Google Scholar
  28. 28.
    K. Buliaminu, Tensile and chemical analyses of selected steel bars produced in Nigeria. AU J. Tech. 13(1), 29–33 (2009)Google Scholar
  29. 29.
    M.M. Rafi, S. Lodi, A. Nizam, Chemical and mechanical properties of steel rebars manufactured in Pakistan and design implications. J. Mater. Civ. Eng. 26(2), 338–348 (2014)CrossRefGoogle Scholar

Copyright information

© ASM International 2019

Authors and Affiliations

  • Jamiu Kolawole Odusote
    • 1
  • Wasiu Shittu
    • 1
  • Adekunle Akanni Adeleke
    • 2
    Email author
  • Peter Pelumi Ikubanni
    • 3
  • Olumide Adeyemo
    • 4
  1. 1.Department of Materials and Metallurgical EngineeringUniversity of IlorinIlorinNigeria
  2. 2.Department of Mechanical EngineeringUniversity of IlorinIlorinNigeria
  3. 3.Department of Mechanical EngineeringLandmark UniversityOmu-AranNigeria
  4. 4.Midwal Engineering Services LimitedLekkiNigeria

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