CF vs G10

Not sure if this is allowed but here's a video I made about the 0450CF: https://youtu.be/EimJOd94ksw

And no I didn't make this thread only to promote my video, just thought you'd like to see how CF is done correctly!


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Tachead7075 said:
I am sorry but, this is not correct. CF is both stronger and lighter. And, CF can be textured as well. Here is an example.

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Possible resin differences aside, they are pretty much the same material but one uses a carbon weave and the other uses a glass weave.
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I have tried doing destructive test on both material and G10 is stronger.
 
Kwon Kwang said:
First time I have ever heard this. Source?
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There are many sources just run a google search. My knowledge comes from an aerospace manufacturing course I took in college. You can compare material data sheets from suppliers or probably an easier to find comparison would be on RC sites as these are commonly used materials for that application (Multirotor, Helicopter, exc.).
 
shqxk said:
I have tried doing destructive test on both material and G10 is stronger.
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There are many variables including the resin used, the weave pattern, the quality of the glass and carbon weaves, the shape of the composites, the surface finish of the composites exc. I simple destruction test is not scientific nor conclusive. Also, strength is a very broad term.
 
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Tachead7075 said:
There are many variables including the resin used, the weave pattern, the quality of the glass and carbon weaves, the shape of the composites, the surface finish of the composites exc. I simple destruction test is not scientific nor conclusive.
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So why are you saying CF is better? Are we strictly talking about knife handle applications, or materials science in general?

From what I've gathered over the years, is that each material has completely different properties. For knife handle applications though, they are nearly identical except for aesthetics. It's like comparing a Maple knife handle to a Koa one; sure, they look different, but their primary function for said application is nearly identical.

Tachead7075 said:
Also, strength is a very broad term.
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Only if used in a broad way. Strength has a very specific definition.
 
Blues Bender said:
So why are you saying CF is better? Are we strictly talking about knife handle applications, or materials science in general?

From what I've gathered over the years, is that each material has completely different properties. For knife handle applications though, they are nearly identical except for aesthetics. It's like comparing a Maple knife handle to a Koa one; sure, they look different, but their primary function for said application is nearly identical.
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Better? It is a personal choice really. It is the more premium material and offers higher strength at a lower weight. But, both are great scale materials imo. Read my original post in this thread. I said "it is not a significant difference in this application".
 
Tachead7075 said:
There are many variables including the resin used, the weave pattern, the quality of the glass and carbon weaves, the shape of the composites, the surface finish of the composites exc. I simple destruction test is not scientific nor conclusive.
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I bought both CF and G10 from http://usaknifemaker.com/ which is 3K Carbon fiber... one of the best CF we can bought.

Base on my experience CF might be slightly more rigid but when you push it beyond limit it will break.
G10 is very tough material and it very hard to break even with high impact.

Try buying a sheet of each material with same thickness/dimension, put it between two brick and smash it with a hammer at the center and you will understand why I said G10 is far stronger than CF.
 
Tachead7075 said:
There are many sources just run a google search. My knowledge comes from an aerospace manufacturing course I took in college. You can compare material data sheets from suppliers or probably an easier to find comparison would be on RC sites as these are commonly used materials for that application (Multirotor, Helicopter, exc.).
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I did run searches and G10 came up a little stronger. A couple of my carbon fiber handles have cracked or chipped in small places, whereas my G10 handles have not. "I went to college" is not really a source.
 
Blues Bender said:
So why are you saying CF is better? Are we strictly talking about knife handle applications, or materials science in general?

From what I've gathered over the years, is that each material has completely different properties. For knife handle applications though, they are nearly identical except for aesthetics. It's like comparing a Maple knife handle to a Koa one; sure, they look different, but their primary function for said application is nearly identical.



Only if used in a broad way. Strength has a very specific definition.
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There is yield strength, tensile strength, shear strength, compressive strength, impact strength, fatigue strength, exc. It is a broad term.
 
I've owned CF, G10, and Micarta. I usually don't like G10 unless the texturing is light and it's polished. I like some CF, but it depends on the weave and the finish. I usually like all Micarta.

As far as strength is concerned, for everyday use and anything that constitutes "reasonable" use of a knife - there won't be any difference you can notice. Kind of like comparing the reliability of a Smith and Wesson M&P to a Glock (Glocks can fail, btw). If you're looking for torture test style conclusions, the material is cheap enough that you can buy all 3 and try to demo them without ruining knives. But unless you plan on doing things to your knife that would make it break (and at that point, if it's a folder, you'll probably experience pivot/liner damage before scale/cover damage, unless it's an "overbuilt" folder), then either would be sufficiently strong.
 
Kwon Kwang said:
I did run searches and G10 came up a little stronger. "I went to college" is not really a source.
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Stronger per weight? Stronger per thickness? Stronger in tensile strength? In yield strength? In compressive strength? In impact strength? In fatigue strength? In shear strength?

It is where I learned a lot about the materials and their applications though.

It really depends on many variables guys, what kind of strength we are talking about, and the exact way it is used. The bottom line is CF is the more premium material and that is why it is used in aviation, aerospace, racing, RC, and many other high performance applications far more the FN4. In a scale/handle material application, it probably doesnt matter much so, pick whatever tickles your fancy.
 
Tachead7075 said:
Better? It is a personal choice really. It is the more premium material and offers higher strength at a lower weight. But, both are great scale materials imo. Read my original post in this thread. I said "it is not a significant difference in this application".
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Yes, I read all of your posts, and you are not making any sense. You are contradicting your own "facts".

Tachead7075 said:
There is yield strength, tensile strength, shear strength, compressive strength, impact strength, fatigue strength, exc.
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My point exactly...
 
Blues Bender said:
Yes, I read all of your posts, and you are not making any sense. You are contradicting your own "facts".



My point exactly...
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That's funny you are not making any sense to me lol. Anyway, I'm not going to waste my time arguing here. Use/buy whatever you see fit.
 
Tachead7075 said:
Stronger per weight? Stronger per thickness? Stronger in tensile strength? In yield strength? In compressive strength? In impact strength? In fatigue strength? In shear strength?

It is where I learned a lot about the materials and their applications though.

It really depends on many variables guys, what kind of strength we are talking about, and the exact way it is used. The bottom line is CF is the more premium material and that is why it is used in aviation, aerospace, racing, RC, and many other high performance applications far more the FN4. In a scale/handle material application, it probably doesnt matter much so, pick whatever tickles your fancy.
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Ever heard the term "knows enough to be dangerous"? I think KK is describing that it is tougher.
 
IMNHO, all of the great Micartas & woods out there make far better scales for the types of knives I collect (custom fixed)...therefore, the answer to this question is actually "other". The again, the only criteria I really care about are aesthetics & overall feel. I know that G10 & CF both have very nice properties, but I just can't get over the "cheap" look & feel that I experience, for the most part.
 
Yeah, well, I have Bulletproof G10 on my folder. Beat that suckaaaaaaas!

(I know it's not Bulletproof in reality. That's just the name)

XNT6psQ.jpg
 
Wow aleforme...that's G10?!? I take back what I said about it looking "cheap"...that stuff looks amazing. Are you sure that's not Micarta or some sort of dyed exotic stabilized hardwood? Did you Google this &-or learn about this in a college setting?? That stuff is beautiful.
 
G10 = layers of fiberglass cloth soaked in resin and then baked while under high pressure.

Micarta = layers of linen, canvas, or paper soaked in resin and then baked (cured) under high pressure.

Carbon Fiber = layers of carbon cloth soaked in resin and cured at high temp.

In each case the material and resin will differ. CF tends to be the lightest but also the most sensitive to damage by crushing or impact.

Secondary issues go to feel and appearance. Nicely polished CF has a popular appearance but usually the better it looks the less grip it has. You can't get it in as many colours as G10 or Micarta.

If I smashed equal sized pieces of each material with a ball peen hammer I could wreck all of them without much fuss. Not sure why I'd do that though.
 
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