Mechanical and technological properties of castings made from 3xx.x alloys depend mainly on properly performed process of melting and casting, structure of a casting and mould, as well as possible heat treatment. Precipitation processes occurring during the heat treatment of the silumins containing additives of Cu and/or Mg have effect on improvement of mechanical properties of the material, while choice of parameters of solutioning and ageing treatments belongs to objectives of research work performed by a number of authors. Shortened heat treatment, which is presented in the paper assures suitable mechanical properties (Rm), and simultaneously doesn’t cause any increase of production costs of a given component due to long lasting operations of the solutioning and ageing. Results of the research concern effects of the solutioning and ageing parameters on the Rm tensile strength presented in form of the second degree polynomial and illustrated in spatial diagrams. Performed shortened heat treatment results in considerable increase of the Rm tensile strength of the 320.0 alloy as early as after 1 hour of the solutioning and 2 hours of the ageing performed in suitable.
 Gruzelski, J.E., Closset, B.M. (1990). The Treatment of Liquid Al-Si Alloys. Illinois. AFS.
 Davis, J.R. (1993). Aluminium and aluminium alloys. ASM Speciality Handbook, ASM International, Materials Park, OH.
 Sjölander, E. & Seifeddine, S. (2010). Optimisation of solution treatment of cast Al-Si-Cu alloys. Materials and Design, 31(1), 44-49. DOI: 10.1016/j.matdes.2009.10.035.
 Ouellet, P. & Samuel, F.H. (1999). Effect of Mg on the ageing behaviour of Al-Si-Cu 319 type aluminium casting alloys. Journal of Materials Science, 34(19), 4671-4697. DOI:10.1023/A:1004645928886.
 Gopikrishna, S. & Binu, C.Y. (2013). Study on effects of T6 heat treatment on grain refined A319 alloy with Magnesium and Strontium addition. International Journal on Theoretical and Applied Research in Mechanical Engineering, 2(3), 59-62.
 Elsebaie, O. (2011). The role of alloying additives and aging treatment on the impact behavior of 319 cast alloy. Materials and Design, 32(6), 3205-3220. DOI:10.1016/j.matdes.2011.02.047.
 Colley, L.J., Wells, M.A., MacKay, R., Kasprzak, W. (2011). Dissolution of Second Phase Particles in 319-type Aluminium Alloy. Heat Treating 2011: Proceedings of the 26th Conference, (pp. 189-198). ASM International, Materials Park, OH.
 Tash, M., et al. (2006). Effect of metallurgical parameters on the machinability of heat-treated 356 and 319 aluminum alloys. Materials Science and Engineering A, 434, 207-217.
 Alkahtani, S. (2012). Mechanical performance of heat treated 319 alloys as a function of alloying and aging parameters. Materials & Design, 41, 358-369.DOI:10.1016/j.matdes.2012.04.034
 Rincon, E., Lopez, H.F., Cisneros, M.M. & Mancha, H. (2009). Temperature effects on the tensile properties of cast and heat treated aluminum alloy A319. Materials Science and Engineering A, 519, 128-140. DOI:10.1016/j.msea.2009.05.022.
 Sokolowski, J.H., Djurdjevic, M.B., Kierkus, C.A. & Northwood, D.O. (2001). Improvement of 319 Aluminum Alloy Casting Durability by High Temperature Solution Treatment. Journal of Advanced Materials Processing Technology, 109, 174-180.
 Pezda, J. (2014). Effect of shortened heat treatment on the hardness and microstructure of 320.0 aluminium alloy. Archives of Foundry Engineering, 14(2), 27-30.
 Pezda, J. (2008). Effect of selected heat treatment parameters of AK9 silumin on its tensile strength. Archives of Foundry Engineering, 8(3), 81-84.