Do knives have torque ratings for their steels?

Eliteone2383

Eliteone2383

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I cant find anything but was wondering if blades have a torque rating? Like how much pressure can they withstand sideways before they break? Yes I know never pry with a knife and I dont but I think some sort of rating on this would be good information to have. Maybe the info is out there and I just dont know where to look?
 
Toughness is probably what you're looking for here.
Here's a nice quick explanation I grabbed from Hudson.

Toughness, as considered for high hardness knife steels, is the relative resistance of a material to breakage, chipping, or cracking under impact or stress. Toughness may be thought of as the opposite of brittleness. Toughness testing is not as standardized as hardness testing. It may be difficult to correlate the results of different test methods. Common toughness tests include various impact tests and bend fracture tests.
 
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Eliteone2383 Eliteone2383 good question. Torque is related to strength, which (strength) is often listed on material data sheets, but those numbers usually won't reflect post heat treatment values, as there would be too much potential variability in processing.
 
If you use the knife as intended then a torque rating wouldn't be as useful of information
That aside, it would--- allow you to see how much abuse and misuse a knife can handle before finally breaking, so you can feel better about stabbing logs and prying open wild crates found in Whoville
 
ShaiHulud said:
If you use the knife as intended then a torque rating wouldn't be as useful of information
That aside, it would--- allow you to see how much abuse and misuse a knife can handle before finally breaking, so you can feel better about stabbing logs and prying open wild crates found in Whoville
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Well when using a knife heavily on a boat or farm sometimes things happen. I think knowing how much torque a knife blade can handle would be good information.
 
Eliteone2383 said:
Well when using a knife heavily on a boat or farm sometimes things happen. I think knowing how much torque a knife blade can handle would be good information.
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As someone who does things at times with knives at my remote property that would be better suited by using the correct tool, I understand your post. However, there are so many variables such as fulcrum point, thickness, length, style, grind, contact point, leverage point, heat treat, etc that I doubt it would be information that could be measured without having blanks of equal dimensions being compared, which have nothing to do with an actual knife in use (imo).

I think finding what you are wanting the most (or wanting to avoid) out of a particular steel would be A good starting point. Are you wanting a blade that is resistant to chipping when twisting? Resistant to breaking if prying? I ask this only because I feel you might get more information if others have a better idea.
 
beeinak said:
As someone who does things at times with knives at my remote property that would be better suited by using the correct tool, I understand your post. However, there are so many variables such as fulcrum point, thickness, length, style, grind, contact point, leverage point, heat treat, etc that I doubt it would be information that could be measured without having blanks of equal dimensions being compared, which have nothing to do with an actual knife in use (imo).

I think finding what you are wanting the most (or wanting to avoid) out of a particular steel would be A good starting point. Are you wanting a blade that is resistant to chipping when twisting? Resistant to breaking if prying? I ask this only because I feel you might get more information if others have a better idea.
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Well thick wet crab lines can pull and tighten when you least expect it and has caused sideways torque on my knives. Its not something that happens often but it happens. Ive been shaving down 2×4s with light batoning and had the knife blade slip and go sideways on me. Just some examples.
 
Eliteone2383 said:
Well thick wet crab lines can pull and tighten when you least expect it and has caused sideways torque on my knives. Its not something that happens often but it happens. Ive been shaving down 2×4s with light batoning and had the knife blade slip and go sideways on me. Just some examples.
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14c28n, Nitro V, and AEB-L are all Very Tough, able to get a fine edge, and stainless.
A good starting hardness is 62HRC for working knives in that steel(s)
 
Eliteone2383 said:
Well thick wet crab lines can pull and tighten when you least expect it and has caused sideways torque on my knives. Its not something that happens often but it happens. Ive been shaving down 2×4s with light batoning and had the knife blade slip and go sideways on me. Just some examples.
Click to expand...
This kind of information is likely to get some input from some experts here.
 
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