Casing:
According with API SPEC 5CT.
Casing threads: Short round thread, length round thread, buttress thread.
Steel grade: J55, K55, L80, N80, C90, T95, P110
O. D. Range from 4-1/2" to 13-3/8", W. T. Range from 0.205" to 0.514".
Length range: R1, R2, R3