As general reference for steel, and it's properties, and the composition of certain alloys, there are a couple of good references online.
Spyderco has a great part of their site, called Edge-U-Cation, in which you can find a page about the different alloys that comprise cutlery steel. Steel Element Information They also have a chart with different alloys listed. Steel Chart
A G Russell also has a Steel Chart. You can click on the words of the different elements to read more about them.
And recently, a long time presence on the internet added a Interactive Knife Steel Chart, that is pretty close to exhaustive.
As a number of the steels offered so far are Crucible products, I thought I would offer a link to their website, where you can find data sheets for some of their offerings.... Crucible
Also, I found an image of a past Tactical Knives article, that I thought you might enjoy.
This article introduces readers to the Spyderco Mule Team Project, as well as covering the steel, 52100, briefly.
Click on the image, for a larger image that you should be able to read.
Enjoy,
Marion