API 5L PSL1/PSL 2 Line Pipe: Gr. B X42, X46, X52, X56, X60, X65 ISO 3183 1/2/3 Petroleum and Natural Gas Industries – Steel Pipe for Pipelines- DNV OS-F101 Submarine Pipeline Systems NACE MR-0175/0177 OD W/T inch mm inch mm 0.405 10.29 0.095 2.4 0.54 13.72 0.0 88-0.119 2.2-3.0 0.675 17.15 0.091-0.126 2.3-3.2 1/2 21.34 0.109-0.147 2.8 -3.7 1 26.67 0.113-0.154 2.9-3.9 1-1/4 33.4 0.133-0.179 3.4-4.6 1-3/4 42. 2 0.145-0.382 3.7-9.7 1-1/2 48.3 0.145-0.400 3.7-10.2 2 3/8 60.3 0.109-0.436 2.8-11 2 7/8 73 0.109-0.552 2.8-14 3 1/2 88.9 0.141-0.600 3.6-15.2 4 101.6 0.156-0.318 4-8.1 4 1/2 114.3 0.156-0.674 4-17.1 5 9/16 141.3 0.156-0.750 4-19.1 6 5/8 168.3 0.188-0.875 4.8-22.2 8 5/8 219.1 0.250-1.000 6.4-25.4 10 3/4 273.1 0.250-1.25 6.4-31.8 12 3/4 323.9 0.330-1.250 8.4-31.8