Question on 420hc steel

A

aguijonmagico

Joined
Mar 24, 2013
Messages
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Hi, I've red that high carbon non stainless steel gets harder by the mere passing of time.
Does it happens the same with 420hc wich would be a stainless high carbon steel?


Thank you all.
 
aguijonmagico said:
Hi, I've red that high carbon non stainless steel gets harder by the mere passing of time.
Does it happens the same with 420hc wich would be a stainless high carbon steel?


Thank you all.
Click to expand...

Reference?

Might be a good question for the Maintenance sub-forum. Would be very interested in the responses.
 
One can read anything on the internet these days. I'd be cautious of such printing. DM
 
I've honestly never heard this about any steel carbon or stainless. I'm sure many of us on here carry knives that are 30+ years old with no issues.
 
aguijonmagico said:
Hi, I've red that high carbon non stainless steel gets harder by the mere passing of time.
Does it happens the same with 420hc wich would be a stainless high carbon steel?


Thank you all.
Click to expand...

If that statement were true, My 1860 French Chasspot Bayonet would be up to about 75 RC and my 1750's Japanese Sword would be up to about 100 RC ..

There are more myths and bs than there are facts about steel, swords & knives.

I can't give you a link, but i do remember reading Mr. Ed Fowler in knife talk, mentioned steel's possibly picking up about 1 RC point in the 24 hours after heat treatment.

But it stops there.

Laurence

www.rhinoknives.com
 
aguijonmagico said:
Hi, I've red that high carbon non stainless steel gets harder by the mere passing of time.
Does it happens the same with 420hc wich would be a stainless high carbon steel?


Thank you all.
Click to expand...



The answer to your query is NO, there is no significant hardening of stainless steel after HT.

The same is true of carbon steels, so even your original supposition is incorrect.



Just because you "red" it's red, doesn't mean it's really red. :eek:


Also please note: While 420HC does have more carbon then other 420 series steels, it's carbon content doesn't compare with true high carbon stainless steels.




Big Mike
 
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While I agree with your points on steels. I was wondering if you can speak, read and write the language of Argentina? DM
 
Some metals do harden at room temperature. There are many grades of aluminum that do it, and titanium. There are precipitation hardening stainless steels that can harden somewhat over long periods at room temperature. Regular carbon and stainless steels, including 420 and 440, won't do it.
 
Keep your esposa as she's helping you in your studio. Precipitation hardening of metals, I've read some on and is difficult to verify--- unless you have 30yrs. and remember where you layed the piece. It's accepted metals hold constant once heat-treated. DM
 
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