Carbon & Carbon Alloy Steels

[Darrin Sanders]

Steel type	Number	Example
Plain Carbon Steels	10XX	1075, 1084, 1095, Etc.
Manganese Steels	13XX	1350
Nickel Steels	2XXX	2340
Nickel Chromium Steels	3XXX	3150
Molybdenum Steels	4XXX	4140
Chromium Steels	5XXX	50100-B
Low Chromium Steels	51XX	5160
Med. Chromium Steels	52XX	52100
Chromium Vanadium Steels	6XXX	6150
Silicon Manganese Steels	9XXX	9160

I just wanted to post this to give some meaning to the numerical system for different alloys. The first numbers designate the main type of alloy, such as Nickel and the last numbers are usually the amount of carbon. For Example, good ol' 5160 is a Low Chromium steel with 60 points or 0.60% Carbon.
I thought some of you may find this helpful in explaining the designations for some of the steels we work with.

 

[cnccutter]

Interesting chart Darrin. wish you'd have posted it as a pic so i could print it for the shop wall.

one question, I know O1 is a carbon steel, how does it fall into the 10XX category? does it have an industrial designation like 10xx that I'm not aware of?

Erik

 

[KenH]

Erik, just select the columns and paste to an Excel (OR LibreOffice) spreadsheet, then you can print to your heart's content. I prefer this method over the image because I can do more things with it.

Darrin - good job! Thanks.

Ken H>

 

[Church & Son]

Very nice and thanks...always wondered what a couple of those were....

 

[Darrin Sanders]

Interesting chart Darrin. wish you'd have posted it as a pic so i could print it for the shop wall.

one question, I know O1 is a carbon steel, how does it fall into the 10XX category? does it have an industrial designation like 10xx that I'm not aware of?

Erik

Erik, O1 is not a 10XX series steel, it is Carbon steel but its alloying classifies it as a Tool Steel.