D2 Blade, some discoloration/rust maybe? advice

N

nguyemic001

Joined
Oct 16, 2012
Messages
32
hi,

recently got my brous blades division flipper, and used it in slicing some steak to test it out (just wanted to see how well it cuts meat) and i suppose that the blade got heated. Then almost 2 minutes later i went to wash it in cold water. after i found some discoloration on the tip of the blade where i cut it. is it from heating and cooling the blade too quickly? or is it from light rust? not sure what to do to remedy the problem.

i dont wanna send it back to jason because i JUST got it. so im looking for alternative options before i resort to returning the blade for some fix ups.

so what do you guys think is up with the D2 blade? rust? or stupid heat changes? (the steak couldnt have been more than 90 degrees Fahrenheit)
 
Chances are, it's just some light oxide (patina). Not destructive rust (red oxide), but the black/grey type which won't hurt your blade. There's no chance the steak overheated the steel; not nearly hot enough to do that, and would likely have to go above ~400° or more to damage anything. Also, the juice/blood in the meat contains salts which will accelerate an oxidation reaction.

No big deal. Some polishing paste like Flitz or Simichrome will remove the oxide with a rag and some elbow grease.


David
 
What David said.

Definitely not a heat issue. D2 is not stainless. When used regularly on foodstuffs it will slowwwwly develop a patina and some very minor pitting. This doesn't harm the blade at all. Use it in good health!
 
Yeah, blood is quite corrosive. D2 is on the edge of stainless, but not quite-- a little Flitzing in order!
 
Thanks for the info everyone, i knew that d2 is more stain prone, i just didnt know that it could set in so quickly! i actually took a look around and heard of a toothpaste method, whatre the thoughts on it?
 
nguyemic001 said:
Thanks for the info everyone, i knew that d2 is more stain prone, i just didnt know that it could set in so quickly! i actually took a look around and heard of a toothpaste method, whatre the thoughts on it?
Click to expand...

If using toothpaste to attempt removal of the oxide, I'm betting it won't work too well on this steel. The abrasive in toothpaste (usually something called 'hydrated silica') is very fine and not very hard.

If you think about it, any toothpaste that would abrade or clean oxidation from hardened steel is likely not the best choice for your teeth. It'd make your tooth enamel disappear fast.

I've experimented with toothpaste as a stropping abrasive, and I couldn't even get any noticeable abrasion on simple carbon steel. It leaves no trace of abraded metal on clean, white paper when stropping a blade on it. At least I was glad I chose it for my teeth. :)

Flitz or Simichrome will fix it quick.


David
 
Last edited:
Obsessed with Edges said:
If using toothpaste to attempt removal of the oxide, I'm betting it won't work too well on this steel. The abrasive in toothpaste (usually something called 'hydrated silica') is very fine and not very hard.

If you think about it, any toothpaste that would abrade or clean oxidation from hardened steel is likely not the best choice for your teeth. It'd make your tooth enamel disappear fast.

I've experimented with toothpaste as a stropping abrasive, and I couldn't even get any noticeable abrasion on simple carbon steel. It leaves no trace of abraded metal on clean, white paper when stropping a blade on it. At least I was glad I chose it for my teeth. :)

Flitz or Simichrome will fix it quick.


David
Click to expand...

Haha thats true! ill try out flitz, will let everyone know how things go!
 
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