hot-rolled structural seamless steel pipe theoretical weight | outer diameter (mm) | wall thickness (mm) | 2.0 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | weight per meter (kg) | 22 | 0.986 | 1.20 | 1.41 | - | - | - | - | - | - | - | 25 | 1.13 | 1.39 | 1.63 | 1.86 | - | - | - | - | - | - | 28 | - | 1.57 | 1.85 | 2.11 | - | - | - | - | - | - | 30 | - | 1.70 | 2.00 | 2.29 | 2.56 | - | - | - | - | - | 32 | - | 1.82 | 2.15 | 2.46 | 2.76 | 3.05 | 3.33 | 3.59 | 3.85 | 4.09 | 38 | - | 2.19 | 2.59 | 2.98 | 3.35 | 3.72 | 4.07 | 4.41 | 4.74 | 5.05 | 42 | - | 2.44 | 2.89 | 3.32 | 3.750 | 4.16 | 4.56 | 4.95 | 5.33 | 5.69 | 45 | - | 2.62 | 3.11 | 3.58 | 4.04 | 4.49 | 4.93 | 5.36 | 5.77 | 6.17 | 50 | - | 2.93 | 3.48 | 4.01 | 4.54 | 5.05 | 5.55 | 6.04 | 6.51 | 6.97 | 54 | - | - | 3.77 | 4.36 | 4.93 | 5.49 | 6.04 | 6.58 | 7.10 | 7.61 | 57 | - | - | 4.00 | 4.62 | 5.23 | 5.83 | 6.41 | 6.99 | 7.55 | 8.10 | 60 | - | - | 4.22 | 4.88 | 5.52 | 6.16 | 6.78 | 7.39 | 7.99 | 8.58 | 63.5 | - | - | 4.48 | 5.18 | 5.87 | 6.55 | 7.21 | 7.87 | 8.51 | 9.14 | 68 | - | - | 4.81 | 5.57 | 6.31 | 7.05 | 7.77 | 8.48 | 9.17 | 9.86 | 70 | - | - | 4.96 | 5.74 | 6.51 | 7.27 | 8.01 | 8.75 | 9.47 | 10.18 | 73 | - | - | 5.18 | 6.00 | 6.81 | 7.60 | 8.38 | 9.16 | 9.91 | 10.66 | 76 | - | - | 5.46 | 6.26 | 7.10 | 7.93 | 8.75 | 9.56 | 10.36 | 11.14 | 83 | - | - | - | 6.86 | 7.79 | 8.71 | 9.62 | 10.51 | 11.39 | 12.26 | 89 | - | - | - | 7.38 | 8.38 | 9.38 | 10.36 | 11.33 | 12.28 | 13.22 | 95 | - | - | - | 7.90 | 8.98 | 10.04 | 11.10 | 12.14 | 13.17 | 14.19 | 102 | - | - | - | 8.50 | 9.67 | 10.80 | 11.96 | 13.09 | 14.21 | 15.31 | 108 | - | - | - | - | 10.26 | 11.49 | 12.70 | 13.90 | 15.09 | 16.27 | 114 | - | - | - | - | 10.85 | 12.15 | 13.44 | 14.72 | 15.98 | 17.23 | 121 | - | - | - | - | 11.54 | 12.93 | 14.30 | 15.67 | 17.02 | 18.35 | 127 | - | - | - | - | 12.13 | 13.59 | 15.04 | 16.48 | 17.90 | 19.31 | 133 | - | - | - | - | 12.73 | 14.26 | 15.78 | 17.29 | 18.79 | 20.28 | 140 | - | - | - | - | - | 15.04 | 16.65 | 18.24 | 19.83 | 21.4 | 146 | - | - | - | - | - | 15.7 | 17.39 | 19.06 | 20.72 | 22.36 | 152 | - | - | - | - | - | 16.37 | 18.13 | 19.87 | 21.60 | 23.32 | 159 | - | - | - | - | - | 17.15 | 18.99 | 20.82 | 22.64 | 24.45 | 168 | - | - | - | - | - | - | 20.10 | 22.04 | 23.97 | 25.89 | 180 | - | - | - | - | - | - | 21.59 | 23.67 | 25.74 | 27.81 | 194 | - | - | - | - | - | - | 23.30 | 25.60 | 27.82 | 30.05 | 203 | - | - | - | - | - | - | - | - | 29.14 | 31.50 | 219 | - | - | - | - | - | - | - | - | 31.52 | 34.06 | 245 | - | - | - | - | - | - | - | - | - | 38.23 | 273 | - | - | - | - | - | - | - | - | - | 42.72 |