material of input shaft on 21 spline t-case??!

[junkyard joe]

i am doing a failure anaylsis on the rear input shaft of my 21 spline toy case for a materials class, it would help a bunch if somebody would know the material that the shaft is made out of any help would be much appreciated
joe

[84runner]

HEY MARLIN

[junkyard joe]

well thats actually why i posted here i was told on pirate that marlin would know soooooooooo............
well thanks in advance

[Marlin]

Joe, after having problems with the factory, 21 spline inputs failing, back in 97', I sent one to a lab to have it checked out....
It costs me about $100.00 to have it complety checked out.
As i remember, the closest american alloy was 1050, or 1051.
This is a tool steel, and is case hardened by adding carbon.
I still have the results some where.....

MC

[84runner]

Sounds like Marlin is doing people homework now. This guy can do it all  

[junkyard joe]

sweet thats what i was looking for, the way the grain looked i suspected that it was carbonized, if it would not be to much work could you post that report?
thanx
joe