This was my first thought as well. Galvanic reaction to something the knife came in contact with keys in the pocket perhaps. As I recall LC200N will exhibit what is being shown here due to galvanic reactions where as H1 is less susceptible to it.sal wrote: ↑Wed Oct 23, 2019 5:05 pmWell, obviously this is new territory and we're all still learning. We know that LC is different from H1. We know that galvanic reaction from steel touching steel has its issues. We've also learned that heat treat affects corrosion resistance. We've earned that hardware close to steel has an effect. So I guess we're all involved in this "learning curve".
Hi Mark, The hardware was stainless and coated but we've not had enough history to know for sure. Our H1 pieces used the same hardware for years without issue. I remember when we changed the clip on the H1 pieces to Titan.
Naturally we're interested in all input, so thanx to all of you for your experience and sharing.
After about 5 years of constant use and living on my drybag. Which always goes to the beach, and on the boat, and spends the rest of its time in my truck in the hot florida sun, and never sees fresh water. I noticed trace looking rust colored stuff coming from the pivot area of my atlantic salt. Weird thing is though on disassembly there was no corrosion damage to the pivot, or backlock bar, or spring, or backlock bar pivot. It all wiped away with a quick rub of alchohol. After that disassembly im pretty convinced if youre one of the few who can even get some trace rust on an h1 salt (pivot or hardware), it still cant/wont damage the knife. Atleast not within one lifetime.
Thanks Voodoo - Larrin’s doing some great work for the knife community.VooDooChild wrote: ↑Thu Oct 24, 2019 7:02 pmThere have been plenty of rustproof marine grade stainless steels over the years. The issue has always been a rustproof stainless good enough to make a knife blade out of. Specifically in terms of having an edge and not being a butterknife.
Good info Cambertree.
My issue on that list is that 154cm has a higher PREN value than n680, vanax, and lc200n so...
I guess thats still just one piece of the puzzle and there are variables (assumed heat treat) we still cant account for.
What were we talking about, a spydiechef.
Has this guy cleaned it yet and reused it? Or sent it back? Just curious to see.
i came to say the same thing. i carry my native salt in the pacific all the time and hardly ever rinse it. i have had a couple of spots show up on the edge, but i’m guessing it’s from metal transfer from using the sharpmaker. have you tried rubbing it off?Sumdumguy wrote: ↑Wed Oct 23, 2019 1:49 pmI'm putting my money on surface contamination from manufacturing. Take some sandpaper to the blade and clean it up, then take it out in the brine again and see what happens.
After a year of neglect, my Caribbean had zero rust on the blade and a little on the liners. I have since cleaned it all off and will report back next year when I take it apart again. You could probably give us some insight fairly quickly
This isn't directed at you, but just an interesting contrast.phaust wrote: ↑Thu Oct 24, 2019 8:34 amNot meant towards anyone in particular and not aimed at this thread as much as the others on LC200N and models using it, I'm sure why whether it is rustproof has ever even been a discussion point honestly (besides as brought up here, that Spyderco claims so in marketing material). The manufacturer itself says it's not rustproof, but of "superior corrosion resistance". That's from the data sheet. They have a corrosion resistance chart and all (and LC200N doesn't hit infinity ). If it was rustproof, they'd sell it on that.
It also seemed very strange so much Spyderco material came out contradicting that. Also a bit alarming that it is a surprise to the company that differing hardnesses resulting in differing corrosion resistance, considering the manufacturer makes sure to mention hardness for each corrosion resistance, and it's not a thing unique to just this steel.
Edit, another line from the data sheet: "Compared to standard tool steels like 1.2316, 1.4112, and 1.4125 LC 200 N exhibits higher corrosion resistance". So it's better, not 100% corrosion resistant.
Correct me if I'm wrong anyone, but that appears to be new stock - 'IS' is September '19 production if I'm not mistaken?