Is it anybody out there who knows the specific compositions for API SPEC 5L materials?
I am specially interested in X60, X65, X70 and X80.
If some do have information of > X80, information is gratefully accepted.
Per the 2000 edition, chemically speaking it is basically a C, Mn steel. Additions of Cb,V, & Ti are permissible up to .15 max and the CE for all grades except 80 is .43 Max.
Like Y 1022 says you may want to buy a copy of the spec.