Nice,mini gladius
USE OIL ONLY FOR QUENCHING
Also look for the edge to be cherry red,the rest will be about orange (edge cools quickly as you take it out)
Quench it vertically,otherwise it can kink,because of the uneven cooling in oil.
Try to heat it uniform as possible,if one side is not so hot,move it in the forge. Heat to orange ,then take it out and just watch the edge run down to cherry,then dip immediately vertically in oil. Tempering oil or used motor oil,should work,probably not so good.
After the quench,put it back in the forge,burn down oil,just until it burns down. Don't heat it too much ~200 C max.,then take it out,drop on the ground,(not concrete) soil,or dry sand,then let it cool slowly.
When it's cool,check with a file.If it barely sharpens it,almost slides on it,it's good.
That's all i know,you may want to read up further..