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Post by miraculix101 on Jan 19, 2024 15:47:24 GMT
Does TH 1095 have any advantages in comparison to TH 1060 or TH 1075? Does it have more flexibility versus a DH 1095?
I am asking because i just bought one from Hanbon forge.
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Post by larason2 on Jan 19, 2024 15:59:14 GMT
The only difference between 1095 and 1060 or 1075 carbon steel is the amount of carbon in it. 1095 has 0.95% carbon, 1060 has 0.60% carbon, and 1075 has 0.75% carbon. Generally, as carbon content goes up, a hardened blade becomes harder and stiffer, but also more brittle. So, a 1060 won't hold an edge as long, but is less likely to chip. 1095 will hold an edge well, but is more likely to chip. It's also a bit harder to sharpen and polish. Personally I prefer a bit less carbon in a sword. I'd rather sharpen more often than risk chips, but that's my preference!
Differentially hardened blades are sometimes left a bit harder at the edge, but sometimes they are left just as hard as their through hardened bretheren. The spine will always be softer than a through hardened edge, but in practice this usually makes no difference. I wouldn't say a TH is more flexible than a DH, the edge is usually identical, and flexibility depends a lot more on geometry than composition. A spring tempered through hardened 1095 blade with thin geometry will be more flexible than a conventionally tempered through hardened 1095 with thin geometry, but in practice, this is unlikely to make much difference. As mentioned, the geometry is going to have much more influence on flexibility, and unless you buy from a particular Taiwanese smith, you're unlikely to have a blade so thin that the tempering is going to make much of a difference.
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Post by mrstabby on Jan 19, 2024 16:03:05 GMT
Theorethically 1095 has better edge retention but is less tough over 1065/75, a lot depends on the heat treat and final hardness. The TH should be more flexible and not get bend as easily as the DH. A Katana is per its geometry a very stiff blade, I don't think there would be that much more flex, but it would take more to bend it permanently.
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Post by AndiTheBarvarian on Jan 19, 2024 16:05:44 GMT
A TH 1095 blade with the same hardness as a TH 1060 or 1075 will be a little bit more brittle. Compared to a DH 1095 blade it will have a less hard and brittle edge but will take a set only after more bending. It's better to use 1060/1075 for TH blades theoretically. But that doesn't mean that a 1095 TH blade is automatically bad. With a good TH heat treatment it's still a good sword. Probably you'll experience no difference to 1060/1075 TH.
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Post by miraculix101 on Jan 20, 2024 2:07:10 GMT
Thank you very much for your answers.
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Post by mrstabby on Jan 21, 2024 15:34:45 GMT
Does TH 1095 have any advantages in comparison to TH 1060 or TH 1075? Does it have more flexibility versus a DH 1095?
I am asking because i just bought one from Hanbon forge.
Can you give a short feedback when you get it please? I am really interested if you can see/feel a difference.
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