... Description steel piep API 1) Tubing O. D.: 2-3/8", 2-7/8", 3-1/2", 4", 4-1/2" 2) ... : 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 ... /873.00.2175.519.536.4062.00NU, EU3-1/288.90.2546.4513.79.276.00NU, EU4101.60 ...