Category: Super Steels

7 thoughts on “Super Steels”

1. Hello i kinda stumbled across your site looking for. Spyderco zdp189 metal information as I’m looking to swap to a custom set of replacement blades for my titanium scaled Byrd 8cr. 3pcs set.
   A simple blade swap would be nice but, they don’t have any replacement options so started to look at making a set my self from Vg10 or S35v but have no idea if need pre heat treated steels or to cut grind the blades first then heat treat…? I’m a small hobbies guy and have had to get creative with this project, because I’m stubborn, there isn’t getting parts like most spyderco knives which annoyed me greatly so i now made it harder by trying to make custom blades and parts to retrofit.
   I’m completely new to this and was just trying to make a small upgraded twist but i got dragged down a rabbit hole trying to get help. And i spoke to spyderco an they dont have plans to update the steels in the byrd line.

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   1. When you buy steel it is annealed soft for working. You have to cut and drill the blade before heat treating, though some people partially grind the bevels before heat treatment as well.

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2. I’ve looked through your website and to say the least I’ve learned a lot about steel that I didn’t know and otherwise likely wouldn’t!

   Out of curiosity what steel would you recommend that has high wear resistance and good if not really good tuffness?

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   1. Depends on how much wear resistance you need. In my recent article on Vanadis 8 I was impressed by how much of a toughness improvement it had over CPM-10V.

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3. hi
   im curious about relation between hrc and rex-121
   if hrc of rex-121is below 70 edge retension will be significantly lower than over 70 hrc?

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4. Hi I’ve been doing a lot of browsing around popular sites that sell custom knives, and comparing them to my own knives that I’ve made with a variety of high grade high carbon stainless steels, and high speed steels. Many companies claim to use the most high quality high carbon steels rather than stainless steels, and according to your knife steel ratings, there are numerous stainless steels that have a higher balance of hardness and toughness as well as corrosion resistance. If these knives they sell are home forged, I have a feeling they would be made with a carbon steel that is more forgiving when it comes to heat treatment which don’t compare to most super steels.
   I read your article on vg10 and super gold steel which are very common in Japanese knives; but looking at some other high alloy stainless steels such as s35vn and s45vn, they are said to be even better. However I don’t find many people that make knives with s35vn other than fold knives. Do very many people understand the difference in quality when it comes to metallurgy?

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   1. There are a lot of factors that go into steel choice including availability. It is relatively difficult to obtain VG10 and Super Gold in the USA but easy in Japan. I’ve never tried to buy CPM steels in Japan but I imagine buying the domestic steels is easier and potentially cheaper.

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