钢管壁厚换算

公称通径
Norminal Pipe Size DN 外径
Outside Diameter

 公 称 壁 厚 T
Norminal Wall Thickness

 
A系列
Series A  B系列
Series B sch5s sch10s sch20s LG sch20 sch30 STD sch40 sch60 xs sch80 sch100 sch120 sch140 sch160
15 21.3 18 1.6 2.1 2.6 --- --- --- --- 2.9 --- --- 3.6 --- --- --- 4.5
20 26.9 25 1.6 2.1 2.6 --- --- --- --- 2.9 --- --- 4 --- --- --- 5.6
25 33.7 32 1.6 2.8 3.2 --- --- --- --- 3.2 --- --- 4.5 --- --- --- 6.3
32 42.4 38 1.6 28 3.2 --- --- --- --- 3.6 --- --- 5 --- --- --- 6.3
40 48.3 45 1.6 2.8 3.2 --- --- --- --- 3.6 --- --- 5 --- --- --- 7.1
50 60.3 57 1.6 2.8 3.6 --- 3.2 --- --- 4 --- --- 5.6 --- --- --- 8.8
65 76.1 76 2 3 3.6 --- 4.5 --- --- 5 --- --- 7.1 --- --- --- 10
80 88.9 89 2 3 4 --- 4.5 --- --- 5.6 --- --- 8 --- --- --- 11
90 101.6 --- 2 3 4 --- 4.5 --- --- 5.6 --- --- 8 --- --- --- 12.5
100 114.3 108 2 3 4 --- 5 --- --- 5.9 --- --- 8.8 --- 11 --- 14.2
125 139.7 133 2.9 3.4 5 --- 5 --- --- 6.3 --- --- 10 --- 12.5 --- 16
150 168.3 159 2.9 3.4 5 --- 5.6 --- --- 7.1 --- --- 11.1 --- 14.2 --- 17.5
200 219.1 219 2.9 4 6.3 --- 6.3 7.1 --- 8 10 --- 12.5 16 17.5 20 22.2
250 273 273 3.6 4 6.3 --- 6.3 8 --- 8.8 12.5 --- 16 17.5 22.2 25 28
300 323.9 325 4 4.5 6.3 --- 6.3 8.8 --- 10 14.2 --- 17.5 22.2 25 28 32
350 355.6 377 4 5 8 8 8 10 10 11 16 13 20 25.8 28 32 36
400 406.4 426 4 5 8 8 8 10 10 12.5 17.5 13 22.2 28 30 36 40
450 457.2 478 4 5 8 8 8 11 10 14.2 20 13 25 30 36 40 45
500 508 529 5 5.6 8 8 10 12.5 10 16 20 13 28 32 40 45 50
550 559 --- 5 5.6 --- 8 --- --- 10 --- --- 13 30  
600 610 630 5.6 6.3 --- 8 --- --- 10 17.5 --- 13 32
650 660 --- --- --- --- 8 --- --- 10 --- --- 13 注：1、sch5s、10s、40s、80s用于不锈钢复合管栏杆件
2、GB 12459为无缝对焊管件标准，GB/T 13401为钢板制对焊管件标准。
700 711 720 --- --- --- 8 --- --- 10 --- --- 13
750 762 --- --- --- --- 8 --- --- 10 --- --- 13
800 813 820 --- --- --- 8 --- --- 10 --- --- 13
850 864 --- --- --- --- 8 --- --- 10 --- --- 13
900 914 920 --- --- --- 8 --- --- 10 --- --- 13
950 965 --- --- --- --- 8 --- --- 10 --- --- 13
1000 1016 1020 --- --- --- 8 --- --- 10 --- --- 13
1050 1067 --- --- --- --- 8 --- --- 10 --- --- 13
1100 1118 1120 --- --- --- 8 --- --- 10 --- --- 13
1150 1168 --- --- --- --- 8 --- --- 10 --- --- 13
1200 1220 1220 --- --- --- 8 --- --- 10 --- --- 13
 
壁厚表 ANSI/ASME B36.10M、B36.19M
Wall Thicknesses Schedule
公称通径
Norminal Pipe Size DN(in.) 外径
Outside Diameter
D 公称壁厚T
Norminal Wall Thickness 
sch5s sch10s sch10 sch20 sch30 sch40s STD sch40 sch60 sch80s XS sch80 sch100 sch120 sch140 sch160 XXS
1/8 10.3 --- 1.24 --- --- --- 1.73 1.73 1.73 --- 2.41 2.41 2.41 --- --- --- --- ---
1/4 13.7 --- 1.65 --- --- --- 2.24 2.24 2.24 --- 3.02 3.02 3.02 --- --- --- --- ---
3/8 17.1 --- 1.65 --- --- --- 2.31 2.31 2.31 --- 3.2 3.2 3.2 --- --- --- --- ---
1/2 21.3 1.65 2.11 --- --- --- 2.77 2.77 2.77 --- 3.73 3.73 3.73 --- --- --- 4.78 7.47
3/4 26.7 1.65 2.11 --- --- --- 2.87 2.87 2.87 --- 3.91 3.91 3.91 --- --- --- 5.56 7.82
1 33.4 1.65 2.77 --- --- --- 3.38 3.38 3.38 --- 4.55 4.55 4.55 --- --- --- 6.35 9.09
1¼ 42.2 1.65 2.77 --- --- --- 3.56 3.56 3.56 --- 4.85 4.85 4.85 --- --- --- 6.35 9.7
1½ 48.3 1.65 2.77 --- --- --- 3.68 3.68 3.68 --- 5.08 5.08 5.08 --- --- --- 7.14 10.15
2 60.3 1.65 2.77 --- --- --- 3.91 3.91 3.91 --- 5.54 5.54 5.54 --- --- --- 8.74 11.07
2½ 73 2.11 3.05 --- --- --- 5.16 5.16 5.16 --- 7.01 7.01 7.01 --- --- --- 9.53 14.02
3 88.9 2.11 3.05 --- --- --- 5.49 5.49 5.49 --- 7.62 7.62 7.62 --- --- --- 11.13 15.24
3½ 101.6 2.11 3.05 --- --- --- 5.74 5.74 5.74 --- 8.08 8.08 8.08 --- --- --- --- ---
4 114.3 2.11 3.05 --- --- --- 6.02 6.02 6.02 --- 8.56 8.56 8.56 --- 11.13 --- 13.49 17.12
5 141.3 2.77 3.4 --- --- --- 6.55 6.55 6.55 --- 9.53 9.53 9.53 --- 12.7 --- 15.88 19.05
6 168.3 2.77 3.4 --- --- --- 7.11 7.11 7.11 --- 10.97 10.97 10.97 --- 14.27 --- 18.26 21.95
8 219.1 2.77 3.76 --- 6.35 7.04 8.18 8.18 8.18 10.31 12.7 12.7 12.7 15.09 18.26 20.62 23.01 22.23
10 273.1 3.4 4.19 --- 6.35 7.8 9.27 9.27 9.27 12.7 12.7 12.7 15.09
  18.26 21.44 25.4 28.58 25.4
12 323.9 3.96 4.57 --- 6.35 8.38 9.53 9.53 10.31 14.27 12.7 12.7 17.48 21.44 25.4 28.58 33.32 25.4
14 355.6 3.96 4.78 6.35 7.92 9.53 --- 9.53 11.13 15.09 --- 12.7 19.05 23.83 27.79 31.75 35.71  
16 406.4 4.19 4.78 6.35 7.92 9.53 --- 9.53 12.7 16.66 --- 12.7 21.44 26.19 30.96 36.53 40.49
18 457.2 4.19 4.78 6.35 7.92 11.13 --- 9.53 14.27 19.05 --- 12.7 23.83 29.36 34.93 39.67 45.24
20 508 4.78 5.54 6.35 9.53 12.7 --- 9.53 15.09 20.62 --- 12.7 26.19 32.54 38.1 44.45 50.01
22 558.8 4.78 5.54 6.35 9.53 12.7 --- 9.53 --- 22.23 --- 12.7 28.58 34.93 41.28 47.63 53.98
24 609.6 5.54 6.35 6.35 9.53 14.27 --- 9.53 17.48 24.61 --- 12.7 30.96 38.89 46.02 52.37 59.54
26 660.4 --- --- 7.92 12.7 --- --- 9.53 --- --- --- 12.7  
28 711.2 --- --- 7.92 12.7 15.88 --- 9.53 --- --- --- 12.7
30 762 6.35 7.92 7.92 12.7 15.88 --- 9.53 --- --- --- 12.7
32 812.8 --- --- 7.92 12.7 15.88 17.48 9.53 17.48 --- --- 12.7
34 863.6 --- --- 7.92 12.7 15.88 17.48 9.53 17.48 --- --- 12.7  
36 914.4 --- --- 7.92 12.7 15.88 19.05 9.53 19.05 --- --- 12.7
38 965.2 --- --- --- --- --- --- 9.53 --- --- --- 12.7 注：sch5s、10s、40s、80s用于钢管件。