PRODUCT >>Tubing Pipe Standard/strong>API SPEC 5CT Application/strong>Tubing is used to extracting petroleum and natral gas for a well. Size of tubing/strong> size designation weight designation OD THK type of end finish grade T&C non-upset T&C external upset in mm in mm J55 L80-1 N80 C90 T95 P110 1.900" 2.40 - 1.900 48.26 0.125 3.18 PI - - - - - 2.75 2.90 1.900 48.26 0.145 3.68 PNUI PNUI PNUI PNUI PNUI - 3.65 - 1.900 48.26 0.200 5.08 PU PU PU PU PU PU 2 3/8" 4.00 - 2.375 60.32 0.167 4.24 PN PN PN PN PN - 4.00 4.70 2.375 60.32 0.190 4.83 PNU PNU PNU PNU PNU - 5.80 5.95 2.375 60.32 0.254 6.45 - PNU PNU PNU PNU PNU 6.60 - 2.375 60.32 0.259 7.49 - P - P P PNU 7.35 7.45 2.375 60.32 0.336 8.53 - PU - PU PU - 2 7/8" 6.40 6.50 2.875 73.02 0.217 5.51 PNU PNU PNU PNU PNU - 7.80 7.90 2.875 73.02 0.276 7.01 - PNU PNU PNU PNU PNU 8.60 8.70 2.875 73.02 0.308 7.82 - PNU PNU PNU PNU PNU 9.35 9.45 2.875 73.02 0.340 8.64 - PU - PU PU PNU 10.50 - 2.875 73.02 0.392 9.96 - P - P P - 11.50 - 2.875 73.02 0.440 11.18 - P - P P - 3 1/2" 7.70 - 3.500 88.90 0.216 5.49 PN PN PN PN PN - 9.20 9.30 3.500 88.90 0.254 6.54 PNU PNU PNU PNU PNU - 10.20 - 3.500 88.90 0.289 7.34 PN PN PN PN PN PNU 12.70 12.95 3.500 88.90 0.375 9.52 - PNU PNU PNU PNU - 14.30 - 3.500 88.90 0.430 10.92 - P - P P PNU 15.50 - 3.500 88.90 0.476 12.00 - P - P P - 17.00 - 3.500 88.90 0.530 13.46 - P - P P - 4" 9.50 - 4.000 101.60 0.226 5.74 PN PN PN PN PN - 10.70 11.00 4.000 101.60 0.262 6.65 PU PU PU PU PU - 4 1/2" 12.60 12.75 4.500 114.30 0.271 6.88 PNU PNU PNU PNU PNU - 15.20 - 4.500 114.30 0.337 8.56 - P - P P - 17.00 - 4.500 114.30 0.380 9.65 - P - P P - 18.90 - 4.500 114.30 0.430 10.92 - P - P P - 21.50 - 4.500 114.30 0.500 12.70 - P - P P - 23.70 - 4.500 114.30 0.560 14.22 P P P - 26.10 - 4.500 114.30 0.630 16.00 - P - P P - Note:1、P-Plain;N-Non upset;U-External;T&C--Threaded and coupled