Case hardening

Hello, calling all experienced ones,

Thanks for reply. These guns aren't super quality, mass produced, so to my untrained eye it feels and looks like a mild steel

It will only be a thin surface hardness so don’t grind through this we only used to allow 5 thousand of an inch for grinding.

Great info guys, I'm keen to try it.

up to you bout scope mate,last one gave some to was wingman,you first since then who needed some,not something usually give out as quite expensive,not worth the expense for most to buy just to do odd smal job,but worth weight in gold when you need it eh,as so easy to use and allways works well,i never use anything but mild steel to make anything these days i need harden as case hardening far better than using tool steel as part dosnt go brittle like tool steel if over heat treated and not anealed correctly,never happens with case hardening,case hardening is a skin leaving center still soft until recently all guns were made hi quality mild steel then selectivly case hardened where needed,beauty of case hardening is its possible to just harden only part of the part where its needed leaving rest unhardened,all older lee enfields and mauser winchesters were mild steel and case hardened where needed,the no4 enfields make in us during war were made tool steels and many developed cracks under use,when older ones never did,nungas method works well if you want harden whole part,oldest method of case harden used 50/50 mis of leather and cow horn shavings and done in forge like nungas method this was how they hardened frizens for flintlocks and other gun parts in early days,just bit history and useless facts of interst.