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Knife Steel Composition and name cross-reference database. Includes popular, high end and exotic alloys used in knife blades. Over 6400 alloy names, over 995 compositions. Alloy names for 21 different international standards, proprietary names and their equivalents. Easy alloy composition comparison with bar graph in 3 modes: mass percentage, molar masses and atomic count per 1000 atoms.

If you have suggestions for improvement, please contact me. Posting in the review that there's a room for improvement doesn't help me at all, I am not a designer, but a software engineer.

Please report missing alloys, as in either post the alloy name, or contact me. Complaining in the review "I didn't find what I wanted" means very little.

If you encounter any problems using the app, please contact me using email. Posting in the review you have a problem, won't give me enough information to fix it.

Sorry, there will be no translations to any language. There is no team, I am just one person collecting steel data and coding the app on web and mobile platforms. I have neither time nor resources to keep constantly translating large database.

Case CV has been the database for a long time. Search for Case does show in the results. Case isn't the steel maker though.

What's New

Version 1.80

Fixes a crash when tapping more button, iOS 10 specific.
Reworked all views to support all device sizes correctly including iPhone 7/7+.
Misc. performance optimizations.
Latest database snapshot.

Ratings and Reviews

4.9 out of 5

73 Ratings

73 Ratings

Bare-essentials steel-metallurgy reference


Invaluable, exhaustive compilation of information on various steels right down to their recipes, often including material characteristics of the steel, and comparisons with similar or alternative blends. Well organized and void of any non-essential functions, it's got it where it counts—fast responding, easy to read, effective and efficient. Good work!

Exactly What I Was Looking For


This is the first app I've rated on my own free will, with no pesky pop ups asking me to. It is a fairly comprehensive encyclopedia of different knife steels. Some descriptions may not be as in depth as possible, but the sheer fact that they're all in one place, easy to search, and informative earns the app five stars in my book.

Man, that's so metal


In eight years being on an iPhone, this is the second time I have ever reviewed an app. With so many proprietorial names out there, is very difficult to keep up with them all. This app often tells me that when I find a good deal, the metal usually isn't all that great.


ZviSoft LLC
3.4 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2012 zviSoft


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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