Outer Diameter Theoretical Weight Wall Thickness Inner Diameter Circumference Coupling OD Thread Type Steel Grade Length 139.7 (5-1/2) 20.85 (0.244) 23.09 (15.50) 25.32 (17.00) 29.79 (20.00) 34.26 (23.00) 6.20 (0.244) 6.98 (0.275) 7.72 (0.304) 9.17 (0.361) 10.54 (0.415) 127.3 (5.012) 125.7 (4.950) 124.3 (4.892) 121.4 (4.778) 118.6 (4.670) 124.1 (4.887) 122.6 (4.825) 121.1 (4.767) 118.2 (4.653) 115.4 (4.545) 153.7 (6.050) Round Thread Rough Thread J55 N80 P110 8m-12m (2602-39.4) 177.8 (7) 25.52917.00) 29.79 (20.00) 34.26 (23.00) 38.73 (26.00) 43.20 (29.00) 47.66 (32.00) 52.13 (35.00) 56.60 (38.00) 5.87 (0.231) 6.91 (0.272) 8.05 (0.317) 9.19 (0.362) 10.36 (0.408) 11.51 (0.453) 12.65 (0.498) 13.72 (0.540) 166.1 (6.538) 164.2 (6.456) 161.7 (6.366) 159.4 (6.276) 157.1 (6.180) 154.8 (6.090) 152.5 (6.004) 150.4 (5.430) 162.9 (6.413) 160.8 (6.331) 158.5 (6.204) 156.2 (6.151) 153.9 (6.059) 151.6 (5.969) 149.3 (5.879) 147.2 (5.795) 194.5 (7.656) Round thread partial ladder thread j55 N80 P110 8m-12m (2602-39.4) 219.1 (8-5/8) 35.75 (24.00) 41.71 (28.00) 47.66 (32.00) 53.62 (36.00) 59.58 (40.00) 6.71 (0.264) 7.72 (0.304) 8.94 (0.352) 10.16 (0.400) 11.43 (0.450) 205.7 (8.093) 203.7 (8.020) 201.2 (7.927) 198.8 (7.827) 196.2 (7.724) 202.5 (7.972) 200.5 (7.894) 198.0 (7.795) 195.6 (7.701) 193.0 (7.598) 244.5 (9.625) Round thread partial ladder thread j55 N80 P110 8m-12m (2602-39.4) 244.5 (9-5/8) 48.11 (32.30) 53.62 (36.00) 59.58 (40.00) 64.79 (43.50) 70.01 (47.00) 71.69 (53.50) 7.92 (0.312) 8.94 (0.352) 10.03 (0.395) 11.05 (0.435) 11.99 (0.472) 13.84 (0.545) 328.7 (9.001) 236.6 (8.921) 224.4 (8.835) 232.4 (8.755) 220.5 (8.681) 216.8 (8.535) 244.7 (8.845) 222.6 (8.765) 220.4 (8.679) 218.4 (8.599) 216.5 (8.525) 212.8 (8.379) 269.6 (10.6250 round thread offset ladder j55 N80 P110 8m-12m (2602-39.4) 273.0 (10-3/4) 48.78 (32.75) 60.32 (40.50) 67.77 (45.50) 75.96 (51.00) 82.67 (55.50) 7.09 (0.279) 8.89 (0.350) 10.26 (0.400) 11.43 (0.450) 12.57 (0.495) 258.9 (10.192) 255.3 (10.050) 252.7 (9.950) 250.2 (9.850) 247.9 (9.760) 254.9 (10.035) 251.3 (9.894) 248.8 (9.794) 246.2 (9.694) 243.9 (9.604) 298.5 (11.752) Round thread partial ladder thread j55 N80 P110 8m-12m (2602-39.4) 339.7 (13-3/8) 71.50 (48.00) 81.18 (54.50) 90.86 (61.00) 101.69 (68.00) 8.38 (0.330) 9.65 (0.380) 10.92 (0.430) 12.19 (0.480) 322.9 (12.715) 320.4 (12.615) 317.9 (12.515) 315.3 (12.415) 319.0 (12.559) 316.5 (12.459) 313.9 (12.359) 311.4 (12.259) 365.1 (14.374) Round thread partial ladder thread j55 N80 P110 8m-12m (2602-39.4) 73.0 (2-7/8) 9.53 (6.40) 11.62 (7.90) 12.81 (8.60) 5.51 (0217) 7.01 (0.276) 7.82 (0.308) 62.00 (2.441) 59.00 (2.323) 57.40 (2.259) 59.61 (2.347) 56.62 (2.229) 54.99 (2.165) 88.9 (3.500) round thread j55 N80 8.5m-9.5m (27.9-31.2) 88.9 (3-1/2) 11.47 (7.70) 15.19(10.20) 5.49(0.216) 7.34 (0.289) 77.9 (3.067) 76.0 (2.992) 24.25 (2.943) 21.04 (2.797) 107.95 (4.250) Round thread j55 N80 8.5m-9.5m (27.9-31.2) 114.3 (4-1/2) 18.77 (12.60) 6.88 (0.271) 100.5 (3.957) 97.37 (3.833) 132.08 (5.200) Round thread j55 N80 8.5m-9.5m (More than 27.9-31 steel pipe specifications are provided by 51 steel pipe nets.