无缝钢管标准公称通径与公称壁厚表公称通径Nominal Pipe Size 外径Outside Diameter 公称壁厚 T Norminal Wall Thickness NPS DN D SCH5s SCH10s SCH10 SCH20 SHC30 SCH40s STD SCH40 SCH60 SCH80s XS SCH80 SCH100 SCH120 SCH104 SCH160 XXS 1/8 1/4 3/8 6 8 10 10
1 - - - 1
65 - - - - - - - - - 1
31 - - - 2
20 - - - - - - - - - - - - - - - 1/2 3/4 1 15 20 25 21
77 - - - - - - - - - 2
38 - - - 3
55 - - - - - - - - - 4
09 11/4 11/2 2 32 40 50 42
77 - - - - - - - - - 3
91 - - - 4