Why no 154CM for Spyderco?

I don't care for CM-154, at least in my Grippie and my (sole) Emerson, a CQC-7A which I modified to a true V-grind. Dunno if it's the geometry or the heat treat but these blades do not cut well and are difficult to bring to a decent edge, even on diamond hones. My Grippie in D2 (Cabela's) is a much better slicer, for some reason, as is my BassPro 110 in CPM-154.
 
bearfacedkiller said:
VG10 is, so far, just used in Japanese Spydies. Comparing it to CPM154 ignores that. CPM154 is a good stainless option for the other foundries for for people who don't think that every steel should have vanadium.

I think the better comparison would be to ask what does CPM154 do that CTS-XHP cannot.
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I believe the comparison was being made between VG-10 and 154CM, not CPM154

Jim
 
He didn't specify that so how do you know? He just said 154 which is vague since 154 is not a steel designation and 154CM and CPM154 are definitely not the same. Either way my point is valid. His comment left out the variable of accessibility and country of origin.
 
bearfacedkiller said:
He didn't specify that so how do you know? He just said 154 which is vague since 154 is not a steel designation and 154CM and CPM154 are definitely not the same. Either way my point is valid. His comment left out the variable of accessibility and country of origin.
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If you look again at my post, I didn't say "I know," I said, "I believe". And that's because this thread is specifically asking why Spyderco isn't using 154CM. And many people make comparisons between 154CM and VG-10 due to some similarities.

Jim
 
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"While playing with my Spydies, a thought occurred to me that I have seen very few Spydercos made with 154CM or the more current CPM 154...Curious, why doesn't Spyderco use 154CM much?"

The OP's statement was a little ambiguous, but I took him (not others) to mean 154CM in Spyderco use based upon the last line. One thing I notice about Spyderco is that they eschew using steels that are in common use by others (notably BM) and give us steels that are not readily found, instead. I love this about Spyderco. 154CM is a steel that BM seems to love. It is not a bad steel, but there are steels that I like much better, even in the same "range" or category. I do not need (but do have them) steels like S110V. But I love XHP, K390, and I also like VG-10 pretty well.
 
Mo2 said:
cpm-154 will be close to s35vn for edge retention iirc. its also decent toughness. i also find it easier to sharpen than s35vn. strange indeed. but true.
you can see on ankersons tests where RWL-34 is and also the S90V/CPM 154 - Para 2.

https://www.bladeforums.com/threads...ed-on-edge-retention-cutting-5-8-rope.793481/
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that CPM154/S90V has a S90V cutting edge and it is clad in CPM154. The cutting performance for this knife is based upon the S90V core.

That being said, 154cm is a very serviceable alloy. It loves a toothy edge, but takes a high polish rather easily. I have a custom friction folder on order in 154cm, and I can't wait for it to land.
 
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I would assume that not using 154CM is a business decision. Many of the US made Spyderco knives use S30V and S35V, and I would bet that Spyderco wants to be competitive with other makes.

Also, in my experience, VG10 has better corrosion resistance than 154CM. Wear resistance varies with blade geometry and heat treatment for both steels. If I had to choose, I would rather have S35V or VG10 than 154CM, depending on expected uses. For a backyard knife, I prefer a larger Spyderco in VG10. For general carry, it is a wash, but there are steels that I prefer to154CM. For fishing, I would rather have VG10 or S35V.
 
Spyderco usually use what there makers / factory have. So for instance the Japanese maker offers vg10 and zdp189 as well as some others. The Chinese offer 8cr13mov. Spyderco even found one vendor in China that spent the money on good heat treatment equipment that can HT bd1 (maple knives iirc). The USA factory of course does multiple different sprint runs for different steel types in smaller batches.

Seems the main steel type has been changed to s30v for the most part. I forgot what it was prior.

In any case I don't see any reason for 154cm in particular if they already are offering an assortment of steel types that are either on par or better. But in any case it's mostly factory dependent from what I recall from spyderco interviews with Sal and or Eric
 
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