Many types of steel are too soft for certain applications. Very often it is necessary to harden a particular piece of steel. For example, if you wish to make your own chisels or a sword or a knife blade, it is necessary to harden most types of steel so they will hold an edge. In order to do this, you will need to infuse carbon into the outer layer of your steel. Carbon has been used to add strength to steel for centuries. For purposes of this article we will assume that the item you wish to harden will fit into a Weber Bar-B-Q. Always wear heavy protective clothing when working with hot metal. Always wear eye protection andThe post How to Heat Treat Steel appeared first on MST Steel Corp.