1. 1.https://nptel.ac.in/courses/113106032/16%20-%20Properties%20and%20Applications%20of%20Materials.pdf (Retrieved December 17, 2018).
2. 2. Vitos, L.; Zhang, H.L.; Lu, S.; Al-Zoubi, N.; Johansson, B.; Nurmi, E.; Ropo, M.; Punkkinen, M.P.J.; Kokko, K. Alloy Steel: Properties and Use First-Principles Quantum Mechanical Approach to Stainless Steel Alloys. In. Morales E.V. (Eds). Croatia, Intech Open Access Publisher, 2011, Chap 1.
3. 3. The Balance, Steel Grades and Properties. What Are the Different Types of Steel? Adres: https://www.thebalance.com/steel-grades-2340174 (Retrieved December 17, 2018).
4. 4. El-raouf, M.A.; El-Azabawy, O.E.; El-Azabawy, R.E. Egypt. J. Pet. 2015, 24, 233–239.
5. 5. Gong, W.; Yin, X.; Liu, Y.; Chen, Y.; Yang, W. Prog.Org. Coat. 2019, 126, 150–161.