Search found 246 matches

by Chumango
Mon Jul 03, 2017 2:47 pm
Forum: Spyderco General Discussion
Topic: Paramilitary 2 - S110V or Maxamet?
Replies: 5
Views: 4067

Re: Paramilitary 2 - S110V or Maxamet?

S110V has the advantage when it comes to toughness. It is not in the same class as non-stainless steels, but is better in this regard than Maxamet.
by Chumango
Sat Jul 01, 2017 1:10 pm
Forum: Spyderco General Discussion
Topic: Compression lock then and now
Replies: 14
Views: 3258

Re: Compression lock then and now

I do not have to choose between a smooth, free opening pivot and no blade play with the two Paramilitary that I have - S30V and CPM-D2. Both are good specimens. I like several things better about the PM2 but I prefer the original detent design.
by Chumango
Fri Jun 23, 2017 8:47 pm
Forum: Spyderco General Discussion
Topic: Steel Composition questions
Replies: 12
Views: 2284

Re: Steel Composition questions

Even the same steel at the same geometry can show different results since all heat treating has tolerances of a point or so. So if you compare two "identical" blades, one may be at the higher end of the target range and the other at the lower end of the target range. It gets messier when y...
by Chumango
Sat Jun 03, 2017 11:52 am
Forum: Spyderco General Discussion
Topic: S110V VS. MAXAMET
Replies: 9
Views: 7090

Re: S110V VS. MAXAMET

The wear resistance would come more form the hard carbide formers - notably vanadium and niobium - not the cobalt, and to a lesser degree tungsten. Maxamet has 6% V, while S110V has 9.1% V plus 3% niobium. Maxamet has an advantage of several points in hardness, which makes a big difference. Jim's te...
by Chumango
Fri Jun 02, 2017 4:30 pm
Forum: Spyderco General Discussion
Topic: Maxamet future plans?
Replies: 14
Views: 2466

Re: Maxamet future plans?

Hey Popsickle, I don't know where live now, but you said you were moving close to the Smokies and wanted an outdoor folder. I live not far from there, and something to consider is the humidity in the summer here. I understand that Maxamet is no more stainless than M4, perhaps a bit less so. Somethin...
by Chumango
Fri May 26, 2017 4:06 pm
Forum: Spyderco General Discussion
Topic: Update!! M390, CTS-204p Chipping
Replies: 36
Views: 10870

Re: M390, CTS-204p Chipping

It is my opinion, not necessarily based on fact but by observation of a limited sample, that sharpening with powered high speed equipment can very easily leave a burr that can be very persistent. The edge does not have to be "burned" at all. It takes a few sharpenings to get past the weake...
by Chumango
Fri Apr 28, 2017 5:04 pm
Forum: Spyderco General Discussion
Topic: Uh oh nutnfancy spreading misinformation...
Replies: 150
Views: 30731

Re: Uh oh nutnfancy spreading misinformation...

Dread pirate Roberts?
by Chumango
Fri Apr 28, 2017 3:47 pm
Forum: Spyderco General Discussion
Topic: Uh oh nutnfancy spreading misinformation...
Replies: 150
Views: 30731

Re: Uh oh nutnfancy spreading misinformation...

My nephew worked with pool chemicals for a summer. The first day of opening bags of chemicals rusted his S30V Native. Then he got something in H1 (don't recall the model) and didn't have a spot of rust the rest of the summer. And pool chemicals are strong oxidizers often with chlorine or bromine. If...
by Chumango
Sat Apr 22, 2017 3:29 pm
Forum: Spyderco General Discussion
Topic: Spyderco Medium vs Fine Bench Stone
Replies: 20
Views: 6557

Re: Spyderco Medium vs Fine Bench Stone

I grew up sharpening with Arkansas stones. They are basically quartz. The different grades (soft, hard) are only different in density, not in composition or the size of the crystals. Arkansas stones will sharpen most things, but as the amount of hard carbides (vanadium, niobium) increases the longer...
by Chumango
Fri Apr 21, 2017 9:19 am
Forum: Spyderco General Discussion
Topic: Native 5 Induced lock failure
Replies: 19
Views: 3120

Re: Native 5 Induced lock failure

I guess the normal thing to do any more is to post a video on YT rather than contact the manufacturer, the only one who can actually do anything about it. Not just here with Spyderco, but with a lot of brands and a lot of different types of products. The only time I have gone public with an issue is...
by Chumango
Fri Apr 21, 2017 6:58 am
Forum: Spyderco General Discussion
Topic: CBN or Diamond rods for sharpening ZDP-189?
Replies: 21
Views: 6202

Re: CBN or Diamond rods for sharpening ZDP-189?

Bodog, I just re-read your initial statement above, and I apparently misread some of your statements, or read it too fast (I was tired last night). What you said as a whole makes more sense now, though I think a lot of my later comments are still valid.
by Chumango
Fri Apr 21, 2017 5:46 am
Forum: Spyderco General Discussion
Topic: CBN or Diamond rods for sharpening ZDP-189?
Replies: 21
Views: 6202

Re: CBN or Diamond rods for sharpening ZDP-189?

The sources cited are inconsistent in their conclusions. One says that poly is better for pastes, mono is better for bench stones (there appears to be a trend with this thought). Several say that poly is faster, the last says they are the same speed. The first is a marketing brochure (there is that ...
by Chumango
Thu Apr 20, 2017 9:09 pm
Forum: Spyderco General Discussion
Topic: CBN or Diamond rods for sharpening ZDP-189?
Replies: 21
Views: 6202

Re: CBN or Diamond rods for sharpening ZDP-189?

I have never heard of polycrystalline diamonds cutting better or longer than monocrystalline. If so, why do manufacturers (such as DMT, probably the largest manufacturer, and they make quality products) make a point of saying they use monocrystalline? Do you have sources for this information?
by Chumango
Tue Apr 18, 2017 5:47 am
Forum: Spyderco General Discussion
Topic: Corrosion Resistance Ranking of Stainless Steels
Replies: 16
Views: 5609

Re: Corrosion Resistance Ranking of Stainless Steels

I don't think there is much of a difference between S30V and S35VN, at least that I have noticed. And yes, surface finish plays a very large role in corrosion. Last weekend I went backpacking, and the M4 PM2 I had in my pocket ended up speckled with very small rust spots on the side facing my body (...
by Chumango
Mon Apr 17, 2017 5:36 am
Forum: Spyderco General Discussion
Topic: Corrosion Resistance Ranking of Stainless Steels
Replies: 16
Views: 5609

Re: Corrosion Resistance Ranking of Stainless Steels

Thanks for your input, guys. I think this is a pretty good general guide, though I am sure things may move around a bit depending on actual use and experience. For example, salt water kayak use is different form my use. Personally, I would rank M4 above 1095 and 5160, but everyone's experience may b...
by Chumango
Sun Apr 16, 2017 3:41 pm
Forum: Spyderco General Discussion
Topic: Corrosion Resistance Ranking of Stainless Steels
Replies: 16
Views: 5609

Corrosion Resistance Ranking of Stainless Steels

In order of highest to lowest, as far as I can tell: S110V 204P/M390/20CV S90V/20CP S30V/S35VN Does your experience agree with this ranking? Even the "lowest" in this list is good in my experience. I have only seen a *light* spot on S30V despite having it covered with sweat on a hot summer...
by Chumango
Fri Mar 24, 2017 9:10 am
Forum: Spyderco General Discussion
Topic: Advice for sharpening/ stropping zdp or m390
Replies: 22
Views: 6724

Re: Advice for sharpening/ stropping zdp or m390

A 30-45 minute sharpening time seems like a lot to me, unless you are chasing the hair-whittling edge and stepping through all the grits. I refresh an edge with EF DMT, and it does not take nearly that long. S110V does take a few minutes longer than other steels I have to get to the hair shaving sha...
by Chumango
Thu Mar 09, 2017 6:44 am
Forum: Spyderco General Discussion
Topic: S110v vs M390 pm2
Replies: 75
Views: 32499

Re: S110v vs M390 pm2

Lance has not been on to answer the question of how he tested corrosion resistance. I will try to avoid putting words in his mouth, but I don't think it was "formal" testing. He spends a lot of time in a kayak on the ocean in the tropics, so think warm salt water. If I recall correctly, he...
by Chumango
Tue Mar 07, 2017 7:06 am
Forum: Spyderco General Discussion
Topic: S110v vs M390 pm2
Replies: 75
Views: 32499

Re: S110v vs M390 pm2

So basically you've got one steel which I consider more user friendly for a little more money (M390), or one even more extreme performer for a little less (S110V). I really don't know how you pick between the two. Got a coin handy? This sums it up. Both are premium steels and will be very noticeabl...