Am I missing something?

A

Adam.b.phillips.89

Joined
Sep 16, 2013
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Ok I just made my first knife
Blade: steel from a diamond tip concrete saw blade
Handle: California buckeye, danish oil and semigloss clear spray laquer, silver nickel pins and gorilla glue 5 min epoxy

I got this thing finished Friday. Saturday night went camping used it to cut steak, peppers, onions and bait works excellent.... Woke up Sunday morning the blade had rainbow colored stains and rust all over the blade... I wiped off everything from the blade before bed Saturday night... Was I supposed to put a coating over the blade? I was able to wets and everything off of it but not thrilled about what happened.
 
Some steels do that. You should wipe with oil of some kind. If it's a simple carbon steel it will get a patina from meat and acids in food pretty easy. Any idea what steel it is?
 
Thanks for the response. No idea what kind of steel it is.... With a good cleaning and oiling every night after use would you think I could keep the stains away? Or am I going to have them just because it's carbon steel?
 
I don't think you can stop it completely but you can slow the process by wiping with mineral oil after cleaning and drying. Do you have pics?

Who made the bit it came from? May be able to track down what material it is.
 
Ok that's a good idea about the mineral oil.... Yes I have pics of the blade after it stained and after wetsanding.... I just need a little while to figure out how to get them from my phone to here lol
 
I wouldn't worry to much . I would recommend doing a force patina . It will create a more uniform look to the blade and it will help prevent rust also.
 
Wash and rinse it well.

Stick it in a couple of lemons for awhile and let a patina form on it. Reinsert it until you get it as dark as you like then rinse it off and coat it with some mineral oil.

That will help with the rusting and you can clean the knife and use as much as you like, just rinse it off and dry it off after use.

In a pinch out doors I just rub my thumb and forefingers on either side of the nose and use the oil to coat the blade. That will keep it from rusting in a pinch.
 
pic didnt work for me but I will tell you this. the blade is gonna stain... might as well make it stain in a controlled way if you dont like the way its gonna do it on its own. forced patinas can be pretty cool looking.
 
I would not worry about the staining or rust. What I would worry about is:
Blade: steel from a diamond tip concrete saw blade

I have had these analyzed, as have many others...and they are usually about .30% to .40% carbon.
 
I love good high carbon blades that change color with use! :cool:

But don't use anymore of the concrete blade steel for knives...
 
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Ok I think this should work it gave me 4 choices email, HTML, img, and direct. This is the img link
 
If you want to use carbon steel 1084 is a good all arounder. The carbon content varies with the steel chosen. 1084 is .84%, 1095 is .95%, 5160 is .6% but its not a simple steel and has other things added that change the properties somewhat. I think .6% is the minimum accepable level in simple steel for carbon content. Just order some 1084 from Aldo and be done with it.
 
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