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CRKT/Knifecenter Hootenanny: Not actually S30V

Discussion in 'General Knife Discussion' started by Misanthropia, Oct 17, 2016.

  1. inkynate

    inkynate Gold Member Gold Member

    Sep 4, 2010
    I wouldn't say it's quite on the same level, but I've had some light corrosion and staining on my s30v Spyderco Chaparral since I reground it.

    Supposed it was due to the relatively coarse, worn 120grit belt satin finish. I ran coolant, so I don't think there was any heat build up from the belts to blow the HT.
     
  2. Smokinape

    Smokinape

    Jan 21, 2011
    The only real way to tell if it's s30v is to post a pic on instagram and see if it gets more than 50 likes...

    Sent from my SM-G900V using Tapatalk
     
  3. JBradley500

    JBradley500

    180
    Dec 23, 2015
    Someone mix up some steels at the factory?
     
  4. Agith

    Agith Gold Member Gold Member

    321
    Nov 29, 2010
    That's pretty bizarre, since I imagine the actual blade cutting is automated. So I'd have to guess that there's a batch of nega-S30v out there now. I wonder what steel it actually is. You could try taking a piece of flint to the back part. Carbon steel will result in sparks, and I've never seen S30V capable of throwing sparks off flint. So that'd be a start on figuring out if it is actually stainless.
     
  5. Thomas Linton

    Thomas Linton

    Jun 16, 2003
    Since it is scientifically established that heat treat effect corrosion-resistance (citations and abstracts above), it is at least possible that it is a heat treat problem.
     
  6. clearkevin

    clearkevin Gold Member Gold Member

    967
    Oct 7, 2014
    Hey has anyone tried this test with the original maybe it was a blade mix up?
     
  7. Jordan@DLT

    [email protected] Dealer / Materials Provider Dealer / Materials Provider

    890
    Jul 22, 2014
     
    Last edited: Apr 17, 2019
  8. Misanthropia

    Misanthropia Gold Member Gold Member

    Jul 10, 2011
    I think this is far more likely than the steel being something totally different than S30V.

    8cr13MoV shouldn't do this either, no properly heat treated stainless steel should patina so rapidly like that (or impact a metallic taste into food).
     
  9. Luis G.

    Luis G. Gold Member Gold Member

    Jan 18, 2011
    I eat my apples with my buck s30v vantage. It does NOT stain. I've eaten all kinds of fruits, never once have I seen it stain.

    Except with strawberrys but that came off with a little rubbing.
     
  10. Deltadag

    Deltadag

    118
    Nov 16, 2002
    It's possible, just possible, that the steel is genuine S30V that hasn't undergone proper passivation. You can also observe this sort of staining or corrosion on the surface of even 300 series stainless steels if a nonstainless medium was used to polish or burnish the surface. That is the reason why it's ill advised to clean carbon fouling from a stainless steel firearm by using ordinary rustable OOO or OOOO steel wool.
     
  11. KnifeCenter

    KnifeCenter Dealer / Materials Provider Dealer / Materials Provider

    Jul 28, 2008
    Hey, all
    Our new Hootenannies also stain with an apple. We are testing various S30V knives here at Knifecenter. So far they do not stain like this run. We will contact the manufacturer CRKT. Our customers will always be treated fairly. We will certainly keep everyone posted.
     
  12. Jordan@DLT

    [email protected] Dealer / Materials Provider Dealer / Materials Provider

    890
    Jul 22, 2014
     
    Last edited: Apr 17, 2019
  13. Misanthropia

    Misanthropia Gold Member Gold Member

    Jul 10, 2011
    Glad I'm not the crazy one! I also contacted CRKT to let them know about this, but I'm sure your input will be more valuable. Thanks Knifecenter!
     
  14. The cow

    The cow

    646
    Jul 3, 2014
    I've had S30v stain within a couple hours of pocket carry in the summer.
     
  15. KnifeCenter

    KnifeCenter Dealer / Materials Provider Dealer / Materials Provider

    Jul 28, 2008
    Update: CRKT is going to send in our stained knife for analysis.
    We'll get some sort of answer to all this
    Knifecenter
     
  16. mete

    mete Gold Member Gold Member

    Jun 10, 2003
    You've all forgotten one thing about stainless steel !!! Proper manufacture of stainless steel means you never expose it to carbon steel .Machining, grinding , polishing, etc with things that have been used on carbon steel will be contaminated and the contamination will be transfered to the stainless !!! The carbon particles rust and that will continue into the stainless steel !!!
    That's an old story , well documented !!
     
  17. mete

    mete Gold Member Gold Member

    Jun 10, 2003
    You've all forgotten one thing about stainless steel !!! Proper manufacture of stainless steel means you never expose it to carbon steel .Machining, grinding , polishing, etc with things that have been used on carbon steel will be contaminated and the contamination will be transfered to the stainless !!! The carbon particles rust and that will continue into the stainless steel !!!
    That's an old story , well documented !! "Passivation" is sometimes used to avoid the rusting.
     
  18. W. Anderson

    W. Anderson Basic Member Basic Member

    Jun 22, 2016
    Arghhh..

    Who else was hoping for a Hootenany in 1095....

    certainly would've bought one of these mistakes.
     
  19. Revolverrodger

    Revolverrodger

    Jul 23, 2007
    Being made in china it is quite possible the steel is not s30v
    My cousin is a mechanical engineer working for a major car company doing buisness in china. He says that many chinese subcontractors presented samples that respected specs but when production started they switched steels and HT protocols to save money.
    I don't trust made in china
     
  20. W. Anderson

    W. Anderson Basic Member Basic Member

    Jun 22, 2016
    This is good info to have.
     

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