Standard:ASTM A 106 seamless steel pipe SIZE SCH40 SCH80 STD OD OD WT Weight WT Weight WT Weight inch (mm) (mm) (kg/m) (mm) (kg/m) (mm) (kg/m) 1/4" 13.7 2.24 3.79 3.02 4.8 3/8" 17.1 2.31 0.843 3.2 1.097 1/2" 21.3 2.77 1.266 3.73 1.616 3/4" 26.7 2.87 1.687 3.91 2.198 1" 33.4 3.38 2.502 4.55 3.237 1-1/4" 42.2 3.56 3.392 4.85 4.467 1-1/2" 48.3 3.68 4.049 5.08 5.415 2" 60.3 3.91 5.437 5.54 7.482 2-1/2" 73 5.16 8.633 7.01 11.408 3" 88.9 5.49 11.293 7.62 15.274 3-1/2" 101.6 5.74 13.570 8.08 18.635 4" 114.3 6.02 16.075 8.56 22.322 5" 141.3 6.55 21.767 9.53 30.969 6" 168.3 7.11 28.264 10.97 42.564 8" 219.1 8.18 42.549 12.7 64.645 10" 273 9.27 60.292 15.09 95.979 9.27 60.292 12" 323.8 10.31 79.708 17.48 132.049 9.53 73.861 14" 355.6 11.13 94.551 19.05 158.112 9.53 81.335 16" 406.4 12.7 123.307 21.44 203.545 9.53 93.274 18" 457.2 14.27 155.876 23.83 254.684 9.53 105.213 20" 508 15.09 183.433 26.19 311.194 9.53 117.152 24" 609.6 17.48 255.253 30.96 441.803 9.53 141.031 1)cold-drawn or hot rolled technology. 2)The standard length is 5.8m or 6m. 3) making beleve,cap ,bundle and so on