Spyderco/FArid K2 - Full Review and testing.

[Ankerson]

Wow , sounds like you know your stuff. I'm always a bit hesitant buying a knife with a carbon steel blade (as opposed to stainless) due to the fact that I live right on the ocean. The salt air can do a number on some steels. But I've never had a problem with D2.

Ankerson , I'm not familiar with A11. Is it a carbon tool steel ?

A11 is CPM 10V and covers the other steels made by different companies with the same formula.

 

[rlucius]

Mr. Jim Ankerson

Please contact Mike Brubacher (owner) Edge On Up - telephone 480 622 8859 (Phoenix, Arizona). If you would like one of the testers, Edge Sharpness Tester EST KN 100 there is one with your name on it - Mike needs your UPS ship to address if you are interested. http://www.bladeforums.com/forums/showthread.php/1285538-Edge-Sharpness-Tester

Thanks
Rupert

 

[Ankerson]

Mr. Jim Ankerson

Please contact Mike Brubacher (owner) Edge On Up - telephone 480 622 8859 (Phoenix, Arizona). If you would like one of the testers, Edge Sharpness Tester EST KN 100 there is one with your name on it - Mike needs your UPS ship to address if you are interested. http://www.bladeforums.com/forums/showthread.php/1285538-Edge-Sharpness-Tester

Thanks
Rupert

OK I will call him.

 

[NetshadeX]

Just got my K2 today. This review played a big part in my decision. Probably one of my most well-informed purchases

Here it is:

 

[Ankerson]

It is nice isn't it.

 

[Wolverine666]

Awesome pics. Is the titanium stone washed ?

 

[hom76]

Thanks for the review! This is a real tough, hard-use folder.

 

[filtrum]

how much of 10v spyderco managed to HT in this one? i mean, is it, like, the best possible ht result ever? how much does it vary from knife to knife?

 

[DeadboxHero]

I finally got mine today!

First impression is WOW

Action is smooth

The blade is just impressive wow

I'm in love.

Can't believe I've been missing out for so long.

 

[DeadboxHero]

Look at the size of this thing!

 

[Cobalt]

FWIW - ht D2 has around free 5.5%Cr for corrosion resistant.**.

Where did you get this?

 

[BluntCut MetalWorks]

I've my own formula for calculating free Cr% - based mostly on published papers + my interpolation & extrapolation. Here is Larrin's JMatPro simulation runs for various steels at a few aust temps.
** link removed - per Jim request**

As Larrin noted & plenty of references (text & images) on D2 famous large MC. So given 0.55% in solution, ~6.2% free Cr simulation obviously didn't take MC in form of M23C6 into account, therefore free Cr% is much lower - extrapolate ~4-5% range. With secondary temper involved free Cr% will drop into 3-4% range.

Note on Elmax free 10.5-11Cr% (i.e. 7-7.5% locked in carbide form). Luckily for VC, otherwise Elmax free Cr would be much lower than 11%.

edit: link directly to D2 result image

Where did you get this?

 

[Ankerson]

I've my own formula for calculating free Cr% - based mostly on published papers + my interpolation & extrapolation. Here is Larrin's JMatPro simulation runs for various steels at a few aust temps.


As Larrin noted & plenty of references (text & images) on D2 famous large MC. So given 0.55% in solution, ~6.2% free Cr simulation obviously didn't take MC in form of M23C6 into account, therefore free Cr% is much lower - extrapolate ~4-5% range. With secondary temper involved free Cr% will drop into 3-4% range.

Note on Elmax free 10.5-11Cr% (i.e. 7-7.5% locked in carbide form). Luckily for VC, otherwise Elmax free Cr would be much lower than 11%.

Lets try and not regurgitate anything from Cliff Stamps BS area of the internet in my freaking threads. :grumpy:

 

[BluntCut MetalWorks]

Sorry about that Jim... I removed that link. Feel free to blank out the link in quoted text.

Lets try and not regurgitate anything from Cliff Stamps BS area of the internet in my freaking threads. :grumpy:

 

[Ankerson]

Sorry about that Jim... I removed that link. Feel free to blank out the link in quoted text.

Thanks. :thumbup: