Study Of Effect The Soaking Time on Microstructure and Hardness Of ( Steel Grid 60) Using Oil Type (Sheld)

Abstract

The aim of the study was to determine  the effect of thermal treatment on the mechanical and physical properties of the metal low steel carbon type (steel grid 60) and access to the properties of the best and get rid of stresses  within the metal using a coolant (SHELD) is a good specification in the cooling process where three pieces of distribution metal steel were carried out by three different types of heating (half an hour, an hour, an hour and a half), respectively, where the results were different for the microstructure of the metal structure as well as hardness, when soaking time is up to one half-hour was a hardness (HRC 40.1) and at soaking time the amount of time an hour had hardness (HRC 40.9) The soaking time for a period of an hour and a half to be hardness (HRC 39.4), he must install up to one hour inside the oven gives the best of the crystal structure homogenized hand as well as through the hardness also results.