I am using a piece of 1/4 x 2 mild steel for my platen. It wears fast so I can get maybe 5 blades with a good finish before it needs resurfacing. I want to make a hardened platen for it. What would a good steel be for this application? I can HT and temper the 10x steels in my shop but would have to send others out. It will also be surfaced after HT at a machine shop. I also have an arc welder and could hard face the mild steel and have it surface ground. Any help or suggestions?