Detailed Product Description steel piep API 1) Tubing O. D.: 2-3/8", 2-7/8", 3-1/2", 4", 4-1/2" 2) Wall thickness: 4.24 - 16mm 3) Thread type: EUE, NUE 4) Steel grade: J55, K55, N80, H40 5) Standard: API SPEC 5CT, API SPEC 5B 6) High quality 7) Reasonable price Tubing Standard API Spec 5CTODWall ThicknessMassIDEndsGradeinchmminchmmkg/mlb/ftmm J55, K55,N80,L80, P110,2-3/860.30.1904.836.844.650. ...