CRKT/Knifecenter Hootenanny: Not actually S30V

Status
Not open for further replies.
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.
 
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
 
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.
 
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.
 
Thomas Linton said:
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.
Click to expand...

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

clearkevin said:
Hey has anyone tried this test with the original maybe it was a blade mix up?
Click to expand...

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).
 
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.
 
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.
 
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.
 
KnifeCenter said:
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.
Click to expand...
 
Last edited:
KnifeCenter said:
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.
Click to expand...

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!
 
Update: CRKT is going to send in our stained knife for analysis.
We'll get some sort of answer to all this
Knifecenter
 
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 !!
 
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.
 
Arghhh..

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

certainly would've bought one of these mistakes.
 
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
 
Revolverrodger said:
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
Click to expand...

This is good info to have.
 
Status
Not open for further replies.
Back
Top