i have a splitting maul welded to a piece of pipe.its been annealed and i reclaimed the egde and then heated the first inch of the edge to what looked bright red, or until it wasnt attracted to a magnet, quenched in warm water and noticed the edge was not all that hard as a slight tap on a piece of soft steel was enough to dull but not chip the edge.would a quench in cold water make it harder or could it be to low in carbon to get much harder.im afraiad to quench again and have it crack.