Reactivation For Compression Springs Steel Type ASTM – A232.

The aim of this research is the reactivation secondhand ((scrap)) steel compression springs, which used in one private plastic factory, by applying heat - treatment with three methods. 1- Quenching only. 2- and tempering. 3- Annealing , quenching tempering.Were doing under supply conditions. microstructures inspected for specimen from any model 500 X. hardness tests springs have done before after process compare each standard specification springs. best results stiffness nearer . Which obtained at [50.8 HRC ] [31.6] N/ mm that applied third [ + Tempering ].