cts-204p vs cts-20cp

[hawaiihunter]

I am obsessing over not getting a grey pm2 and want to find out if this obsession was neccesary because I'm getting a green pm2

[Sequimite]

From Ankerson's and other tests and info the 204P should be harder, tougher and keep an edge as long as the 20CP.

And the Dark Green color is obviously vastly superior to the light gray.

I wanted a 20CP but missed out. Now I'm glad because IMO the 204P will be the superior P2.

[FarmerSteve]

I'm sick... Just heard about it, and it's already sold out.

[luarbrs]

I am obsessing over not getting a grey pm2 and want to find out if this obsession was neccesary because I'm getting a green pm2

I want to sell my Spyderco 20cp, new in box

[luarbrs]

I want to sell my Spyderco 20cp, new in box

[spydusse]

superior ???? ill take my 20cp para over my m390 military for edge holding any day

[Evil D]

First time I've ever heard anyone refer to 204P as being superior to 20CP.

[Holland]

pretty old thread, i know first hand that my 20cp paras held an edge better than my m390 and 204p knives

[Holland]

actually, 204p could be comparable to 20cp in edge retention if it had a phil wilson heat treat. but as far as the two paras go, 20cp > 204p

[Cliff Stamp]

This is basically a comparison of m390 vs S90V.

m390 is a mould steel, designed for very corrosive environments and includes aspects in its design such as adhesive wear resistance which are not of benefit in knives. It has a much lower abrasive wear resistance than S90V at the same toughness. It isn't a steel designed for optimal performance in a cutting tool, again it was designed for the plastics tooling industry. Actual materials properties : http://www.kau.se/sites/default/files/D ... _19432.pdf

Now if S90V has too much carbide and it is therefore difficult to grind and sharpen then m390 may be a better choice, however Phil Wilson or not, no one is going to create carbides in HT and the only way m390 would have superior properties in a high carbide steel type blade than S90V is if the guy heat treating S90V is fairly incompetent. There is nothing magical about Phil's HT, and in general he would never promote that Spyderco's HT is for example significantly inferior. The most he would claim is that he would be more consistent and specific.

[VashHash]

Necromancer achievement unlocked.

[JNewell]

It isn't a steel designed for optimal performance in a cutting tool, again it was designed for the plastics tooling industry

How many steels were actually designed specifically for knives/cutlery? I have a memory that S30V and S35VN are supposed to be in that category - is that right, and are there others in recent times?

[Cliff Stamp]

Yes, there are many steels which are designed to take and hold a fine cutting edge, the Sandvik steels for example; 12C27M, 19C27, 13C26 and 14C28N. However as you move more away from using a knife as a fine cutting tool and more like a chopping tool, a scraper, digging tool, prybar etc. there are better steels for those applications.