... Heat treatment:Temprature:860 degrees Celsius Time:50 minMedium:oilMechanical properties:Rel(N/MM2):1020Rm(N/MM2):1100A(%):17Z(%):59Aku2(J ... quenching and tempering used for manufacturing under medium load and mechanical parts,such as:axle,machine tools,shafts,gears,sleeves,mandrel ...