Section 5 Pipe and Tube Sizes

5-18
Pipe and Tube Sizes
Tube Sizes - Metric / Inside Diameter
The following table lists metric tube sizes specified on inside diameter. The table is based
on ISO 4200 pipe sizes and weights, with manufacturers’ data added (shown in italics) for
additional common sizes. Commonly available sizes are shown in bold.
Dimensions and weights per metre (based on ISO 4200 sizes and manufacturer’s data)
Inside
Diameter
ID
mm
Wall thickness, mm
1.0 1.5 2.0 2.5 3.0 4.0 5.0 6.0
Notes
- Commonly available sizes are shown in bold.
- Information based on manufacturers’ data is shown in italics.
- Conventional weights are quoted.
For austenitic stainless steels multiply the quoted weight by 1.014.
For ferritic and martensitic steels multiply the quoted weight by 0.985.
Weight, kg/m (conventional weights)
4 0.123
6 0.173 0.395 0.666
8 0.222 0.493 0.814 1.18
10 0.271 0.430 0.592 0.962 1.38 1.85
12 0.321 0.507 0.691 1.11 1.58 2.10
13 0.536 0.956 2.81
14 0.370 0.789 1.26 1.78
15 0.400 0.610 0.851 1.08 2.47
16 0.419 0.888 1.41 3.26
17 0.684 1.20 2.07
18 0.469 0.986 2.84 3.55
19 0.758 1.63
20 0.518 0.807 1.39 2.37 3.08 3.85
21 1.13
22 0.869 1.85 2.56 3.33
23 0.592 1.57 4.29
25 0.980 1.70 3.70
26 0.666 1.38 2.15 4.07 4.74
27 1.05 1.82 3.06
28 0.715 1.48 5.03
29 1.13 2.37
30 0.765 1.18 2.00 3.35 4.32
31 1.63
32 1.24 2.59 3.55
33 0.838 2.19 5.77
34 1.78 2.74
35 1.35 2.13 4.93
36 0.912 1.87
37 1.42 4.04
38 0.962 6.51
40 1.56 2.62 5.55
40.5 2.13
43 1.09 7.25
47 1.79 2.46 5.03
48 1.21 1.86 7.99
50 1.93 2.60 3.24 6.78
Continued on next page
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