Tianjin billion Xinyu Trading Company specializes in sales of special fluid steel pipe, special fluid seamless steel pipe agents, Special 8163 Special Steel Plant fluid pipe, special fluid seamless steel pipe agents, Special 8163 Steel Plant 219 * 18 273 * 40 356 * 36 426 * 13 219 * 20 273 * 42 377 * 9426 * 14 219 * 22 273 * 45 377 * 10 426 * 17 219 * 24 298.5 * 36 377 * 12 426 * 20 219 * 25 325 * 8377 * 14 426 * 22 219 * 26 325 * 9377 * 15 426 * 30 219 * 28 325 * 10 377 * 16 426 * 36 219 * 30 325 * 11 377 * 18 426 * 40 219 * 32 325 * 12 377 * 20 426 * 50 219 * 35 325 * 13 377 * 22 457 * 9.5 219 * 38 325 * 14 377 * 25 457 * 14 273 * 7325 * 15 377 * 32 457 * 16 273 * 8325 * 16 377 * 36 457 * 19 273 * 9325 * 17 377 * 40 457 * 24 273 * 950 325 * 18 377 * 45 457 * 65 273 * 10 325 * 20 377 * 50 508 * 13 273 * 11 325 * 22 406 * 9.5 508 * 16 273 * 12 325 * 23 406 * 11 508 * 20 273 * 13 325 * 25 406 * 13 508 * 22 273 * 15 325 * 28 406 * 17 558.8 * 14 273 * 16 325 * 30 406 * 22 530 * 13 273 * 18 325 * 32 406 * 32 530 * 20 273 * 20 325 * 36 406 * 36 570 * 12.5 273 * 22 325 * 40 406 * 40 610 * 13 273 * 25 325 * 45 406 * 55 610 * 18 273 * 28 356 * 9.5 406.4 * 50610 * 78 273 * 30 356 * 12 406.4 * 55 624 * 14.2 273 * 32 356 * 15 406 * 60 824 * 16.5 273 * 35 356 * 19 20 # steel weight formula: [(OD - Wall Thickness) * Thickness] * 0.02466 = kg / m (weight per meter)