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Benuser
04-24-2012, 02:51 PM
My only problem with carbon steel is dulling after use with acid fruit. Do you experience the same with semi-stainless?

cnochef
04-24-2012, 03:06 PM
Yes, but to a lesser degree. So I instead use an AEB-L petty for most of my fruit work and my Ichimonji TKC 270 gyuto for almost everything else!

kalaeb
04-24-2012, 03:49 PM
Yes, it is important not to think of it as semi-stainless. I think the stainless part should be omitted. It is really a semi-carbon and will degrade, patina etc...just less rapidly than carbon. IMO, semi-stainless should still be treated as carbon, it just has a little more safety for those "oh sh!t, I forgot to clean my blade" moments.

Benuser
04-24-2012, 04:36 PM
Thank you, guys. Very helpful!

tk59
04-24-2012, 09:36 PM
Well, it's all relative. Even "stainless" degrades in acid eventually.

Benuser
04-25-2012, 01:21 PM
Well, it's all relative. Even "stainless" degrades in acid eventually.
Especially a toothy edge will degrade rapidly; a well polished one will resist much better.

tk59
04-25-2012, 02:08 PM
Especially a toothy edge will degrade rapidly; a well polished one will resist much better.Absolutely.

Andrew H
04-25-2012, 05:58 PM
Especially a toothy edge will degrade rapidly; a well polished one will resist much better.

Simply because less steel is exposed to the acid?

tk59
04-25-2012, 06:20 PM
Simply because less steel is exposed to the acid?Yes. Less surface area but I would guess it also probably dries faster with more polish.

Benuser
04-25-2012, 06:32 PM
As far as I know so called stainless steel has in fact an shiny patina of Cr2O3 which might be interrupted. I'm afraid I'm no metallurgist.

Andrew H
04-25-2012, 06:45 PM
Yes. Less surface area but I would guess it also probably dries faster with more polish.

I'd be interested to see how much of the acid would be left behind.

Benuser
04-25-2012, 07:10 PM
With even hardly reactive carbon steel like AS the dulling is almost instantaneous. About the same for stainless with a J1000-2000 edge. In both cases the blades were cleaned immediatly.