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無縫鋼管壁厚表
壁厚表GB 12459 、GB/T13401（Wall Thicknesses Schedule）
公稱通徑
Norminal Pipe Size
DN 外徑
Outside Diameter 公 稱 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
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