color coding of steel bar

[holzwurm]

I recently picked up a couple of 4' steel round bar in like new shape - zero corrosion still had oil on them. Both ends of each bar is colored yellow. Anyone tell me what kind of steel I have here? O-1 - A1, etc.

Jerry

[Rootsy]

Round stock? square stock?

Bar stock...

http://www.pasteel.com/color_code.pdf

[coutios]

I don't think there is a standard that relates to ALL suppliers.. Ya need to know where it came from....  Unless things have changed in the past three years...

Dave

[billd]

We deal with PA Steel, Earl Jorgenson and several others.  I'm told it's a mill code, and every mill has it's own.

Bill

[Howard]

I purchase steel on a daily basis & every mill has a different color code. If I would buy it from Alro Steel in Indianapolis, In. the steel would be 0-1 oil hardened steel.  Cut a small section off & heat it with a torch & quench it or if you have other steels to compair it with do a spark test. Kind Regards!

[KNeilson]

In my experience it differs depending on who and where it comes from also, for the local supplier I deal with yellow means S-7 (air hardening, shock resistant )...  I also have some ground 1/2" bar  stock (yellow ends) that I got as surplus from a known source, it is 4340, a Nickel/Chrome/Moly steel.   

  Cut a small section off & heat it with a torch & quench it or if you have other steels to compair it with do a spark test.

I agree...   Kerry     

[camerl2009]

color codes are differnt from place to place sparke test it with known alloys its the best way ive found