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Seamless steel pipe sizes

Date:2021-07-01View:1745Tags:Seamless steel pipe sizes, Seamless steel pipe dimensions, Seamless pipe specification chart

Seamless steel pipe sizes in mm: 

Out diameter: 1/2 inch - 36 inch (21.3mm-914.4mm)

Thickness: 2.11mm-60mm ( SCH10, SCH20, SCH40, SCH80, STD, SCH120, SCH160, XXS)


Seamless pipe specification chart


NOMINAL  PIPE  SIZE OD(mm) NOMINAL WALL THICKNESS
DN NB(inch) ASME SCH10 SCH20 SCH30 STD SCH40 SCH60 XS SCH80 SCH100 SCH120 SCH140 SCH160 XXS
15 1/2" 21.3 2.11 2.41 2.77 2.77 3.73 3.73 4.78 7.47
20 3/4" 26.7 2.11 2.41 2.87 2.87 3.91 3.91 5.56 7.82
25 1" 33.4 2.77 2.9 3.38 3.38 4.55 4.55 6.35 9.09
32 1.1/4" 42.2 2.77 2.97 3.56 3.56 4.85 4.85 6.35 9.7
40 1.1/2" 48.3 2.77 3.18 3.68 3.68 5.08 5.08 7.14 10.15
50 2" 60.3 2.77 3.18 3.91 3.91 5.54 5.54 8.74 11.07
65 2.1/2" 73 3.05 4.78 5.16 5.16 7.01 7.01 9.53 14.02
80 3" 88.9 3.05 4.78 5.49 5.49 7.62 7.62 11.13 15.25
90 3.1/2" 101.6 3.05 4.78 5.74 5.74 8.08 8.08
100 4" 114.3 3.05 4.78 6.02 6.02 8.56 8.56 11.13 13.49 17.12
125 5" 141.3 3.4 6.55 6.55 9.53 9.53 12.7 15.88 19.05
150 6" 168.3 3.4 7.11 7.11 10.97 10.97 14.27 18.26 21.95
200 8" 219.1 3.76 6.35 7.04 8.18 8.18 10.31 12.7 12.7 15.09 18.26 20.62 23.01 22.23
250 10" 273 4.19 6.35 7.8 9.27 9.27 12.7 12.7 15.09 18.26 21.44 25.4 28.58 25.4
300 12" 323.8 4.57 6.35 8.38 9.53 10.31 14.27 12.7 17.48 21.44 25.4 28.58 33.32 25.4
350 14" 355.6 6.35 7.92 9.53 9.53 11.13 15.09 12.7 19.05 23.83 27.79 31.75 35.71
400 16" 406.4 6.35 7.92 9.53 9.53 12.7 16.66 12.7 21.44 26.19 30.96 36.53 40.19
450 18" 457.2 6.35 7.92 11.13 9.53 14.27 19.05 12.7 23.83 39.36 34.93 39.67 45.24
500 20" 508 6.35 9.53 12.7 9.53 15.09 20.62 12.7 26.19 32.54 38.1 44.45 50.01
550 22" 558.8 6.35 9.53 12.7 9.53 22.23 12.7 28.58 34.93 41.28 47.63 53.98
600 24" 609.6 6.35 9.53 14.27 9.53 17.48 24.61 12.7 30.96 38.89 46.02 52.37 59.54
650 26" 660.4 7.92 12.7 9.53 12.7
700 28" 711.2 7.92 12.7 15.88 9.53 12.7
750 30" 762 7.92 12.7 15.88 9.53 12.7
800 32" 812.8 7.92 12.7 15.88 9.53 17.48 12.7
850 34" 863.6 7.92 12.7 15.88 9.53 17.48 12.7
900 36" 914.4 7.92 12.7 15.88 9.53 19.05 12.7