slipjoint spring material - S30V?

H

HSC ///

Joined
Nov 7, 2012
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I was using 1095 for slipjoints springs.
Recently a mentor said that S30V makes a great spring. So I moved to S30V.
I do like it as a spring for several reasons.

Yesterday I visited another respected experienced maker and he said he did not think S30V was a good spring material for slipjoints...

Slipjoint makers, what are you using for backspring steel?
any opinions on the use of S30V for a spring?

thanks
Harbeer
 
AVigil said:
Did he say why?
Click to expand...
yes, I should have mentioned this,
The S30V has 1.45% carbon, and 4% vanadium which produces primary hard carbides, not the best for a spring application
also he mentioned that drawing back the hardness by tempering also reduces the stainless corrosion resistance.

He suggested 420 SS as the perfect slipjoint spring steel because of the toughness at spring hardness. The problem is availability in the stock required for slipjoint springs.

AEB-L / 12c27 would be the next best option...

I'm starting to think that CPM-154 might be worth investigating.
 
HSC /// said:
I was using 1095 for slipjoints springs.
Recently a mentor said that S30V makes a great spring. So I moved to S30V.
I do like it as a spring for several reasons.

Yesterday I visited another respected experienced maker and he said he did not think S30V was a good spring material for slipjoints...

Slipjoint makers, what are you using for backspring steel?
any opinions on the use of S30V for a spring?

thanks
Harbeer
Click to expand...

I have never built one but STR has a great video about this sort of subject. Please watch the second video on this link: http://strsbackyardknifeworks.blogspot.com/2013/03/about-folding-knife-locks.html?m=1

Although the knife in the video is a backlock I think he makes an interesting point about hardened steels contacting hardened steels.
 
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