Selecting the correct tubing size is essential for ensuring structural strength, pressure performance, and cost efficiency. Whether you're sourcing tubing for mechanical engineering, construction, automotive manufacturing, heat exchangers, or industrial equipment, understanding tubing dimensions, wall thickness, and unit weight helps engineers and buyers make accurate material selections.
A comprehensive Tubing Dimensions and Weight Chart provides quick access to standard outside diameters (OD), wall thicknesses (WT), inside diameters (ID), and theoretical weights for various tubing sizes. These charts are commonly based on international standards such as ASTM, ASME, and EN specifications, making them valuable references for both seamless and welded steel tubing used across a wide range of industries.
|
Labels (1)
|
Labels: NU T&C (2)
|
Labels: EU T&C (3)
|
Labels: IJ (4)
|
Outside dia. D (in) (5)
|
Nominal linear masses: Non-upset lb/ft (6)
|
Nominal linear masses: Ext.upset T&C lb/ft (7)
|
Nominal linear masses: Integral joint lb/ft (8)
|
Wall thickness t (in) (9)
|
Inside dia. d (in) (10)
|
Plain end lb/ft (11)
|
Mass gain/loss: Non upset (12)
|
Mass gain/loss: External upset Regular (13)
|
Mass gain/loss: External upset Special clearance (14)
|
Mass gain/loss: Integral joint (15)
|
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
|
1.05
|
1.14
|
1.2
|
|
1.05
|
1.14
|
1.2
|
|
0.113
|
0.824
|
1.13
|
0.2
|
1.4
|
|
|
|
1.05
|
1.48
|
1.54
|
|
1.05
|
1.48
|
1.54
|
|
0.154
|
0.742
|
1.48
|
|
1.32
|
|
|
|
1.315
|
1.7
|
1.8
|
1.72
|
1.315
|
1.7
|
1.8
|
1.72
|
0.133
|
1.049
|
1.68
|
0.4
|
1.4
|
|
0.2
|
|
1.315
|
2.19
|
2.24
|
|
1.315
|
2.19
|
2.24
|
|
0.179
|
0.957
|
2.17
|
|
1.35
|
|
|
|
1.66
|
2.09
|
|
2.1
|
1.66
|
|
|
2.1
|
0.125
|
1.14
|
2.05
|
|
|
|
0.2
|
|
1.66
|
2.3
|
2.4
|
2.33
|
1.66
|
2.3
|
2.4
|
2.33
|
0.14
|
1.38
|
2.27
|
0.8
|
1.6
|
|
0.2
|
|
1.66
|
3.03
|
3.07
|
|
1.66
|
3.03
|
3.07
|
|
0.191
|
1.278
|
3
|
|
1.5
|
0.2
|
|
|
1.9
|
2.4
|
|
2.4
|
1.9
|
|
|
2.4
|
0.125
|
1.65
|
2.37
|
|
|
|
0.2
|
|
1.9
|
2.75
|
2.9
|
2.76
|
1.9
|
2.75
|
2.9
|
2.76
|
0.145
|
1.61
|
2.72
|
0.6
|
2
|
|
0.2
|
|
1.9
|
3.65
|
3.73
|
|
1.9
|
3.65
|
3.73
|
|
0.2
|
1.5
|
3.63
|
|
2.03
|
|
|
|
1.9
|
4.42
|
|
|
1.9
|
4.42
|
|
|
0.25
|
1.4
|
4.41
|
|
|
|
|
|
1.9
|
5.15
|
|
|
1.9
|
5.15
|
|
|
0.3
|
1.3
|
5.13
|
|
|
|
|
|
2.063
|
3.24
|
|
3.25
|
2.063
|
|
|
3.25
|
0.156
|
1.751
|
3.18
|
|
|
|
0.2
|
|
2.063
|
4.5
|
|
|
2.063
|
|
|
|
0.225
|
1.613
|
4.42
|
|
|
|
|
|
2 3/8
|
4
|
|
|
2.375
|
4
|
|
|
0.167
|
2.041
|
3.94
|
1.6
|
|
|
|
|
2 3/8
|
4.6
|
4.7
|
|
2.375
|
4.6
|
4.7
|
|
0.19
|
1.995
|
4.44
|
1.6
|
4
|
2.96
|
|
|
2 3/8
|
5.8
|
5.95
|
|
2.375
|
5.8
|
5.95
|
|
0.254
|
1.867
|
5.76
|
1.4
|
3.6
|
2.56
|
|
|
2 3/8
|
6.6
|
|
|
2.375
|
6.6
|
|
|
0.295
|
1.785
|
6.56
|
|
|
|
|
|
2 3/8
|
7.35
|
7.45
|
|
2.375
|
7.35
|
7.45
|
|
0.336
|
1.703
|
7.32
|
|
|
|
|
|
2 7/8
|
6.4
|
6.5
|
|
2.875
|
6.4
|
6.5
|
|
0.217
|
2.441
|
6.17
|
3.2
|
5.6
|
3.76
|
|
|
2 7/8
|
7.8
|
7.9
|
|
2.875
|
7.8
|
7.9
|
|
0.276
|
2.323
|
7.67
|
2.8
|
5.8
|
3.92
|
|
|
2 7/8
|
8.6
|
8.7
|
|
2.875
|
8.6
|
8.7
|
|
0.308
|
2.259
|
8.45
|
2.6
|
5
|
3.16
|
|
|
2 7/8
|
9.35
|
9.45
|
|
2.875
|
9.35
|
9.45
|
|
0.34
|
2.195
|
9.21
|
|
|
|
|
|
2 7/8
|
10.5
|
|
|
2.875
|
10.5
|
|
|
0.392
|
2.091
|
10.4
|
|
|
|
|
|
2 7/8
|
11.5
|
|
|
2.875
|
11.5
|
|
|
0.44
|
1.995
|
11.45
|
|
|
|
|
|
3 1/2
|
7.7
|
|
|
3.5
|
7.7
|
|
|
0.216
|
3.068
|
7.58
|
5.4
|
|
|
|
|
3 1/2
|
9.2
|
9.3
|
|
3.5
|
9.2
|
9.3
|
|
0.254
|
2.992
|
8.81
|
5
|
9.2
|
5.4
|
|
|
3 1/2
|
10.2
|
|
|
3.5
|
10.2
|
|
|
0.289
|
2.922
|
9.92
|
4.8
|
|
|
|
|
3 1/2
|
12.7
|
12.95
|
|
3.5
|
12.7
|
12.95
|
|
0.375
|
2.75
|
12.53
|
4
|
8.2
|
4.4
|
|
|
3 1/2
|
14.3
|
|
|
3.5
|
14.3
|
|
|
0.43
|
2.64
|
14.11
|
|
|
|
|
|
3 1/2
|
15.5
|
|
|
3.5
|
15.5
|
|
|
0.476
|
2.548
|
15.39
|
|
|
|
|
|
3 1/2
|
17
|
|
|
3.5
|
17
|
|
|
0.53
|
2.44
|
16.83
|
|
|
|
|
|
4
|
9.5
|
|
|
4
|
9.5
|
|
|
0.226
|
3.548
|
9.12
|
6.2
|
|
|
|
|
4
|
10.7
|
11
|
|
4
|
|
11
|
|
0.262
|
3.476
|
10.47
|
|
10.6
|
|
|
|
4
|
13.2
|
|
|
4
|
13.2
|
|
|
0.33
|
3.34
|
12.95
|
|
|
|
|
|
4
|
16.1
|
|
|
4
|
16.1
|
|
|
0.415
|
3.17
|
15.9
|
|
|
|
|
|
4
|
18.9
|
|
|
4
|
18.9
|
|
|
0.5
|
3
|
18.71
|
|
|
|
|
|
4
|
22.2
|
|
|
4
|
22.2
|
|
|
0.61
|
2.78
|
22.11
|
|
|
|
|
|
4 1/2
|
12.6
|
12.75
|
|
4.5
|
12.6
|
12.75
|
|
0.271
|
3.958
|
12.25
|
6
|
13.2
|
|
|
|
4 1/2
|
15.2
|
|
|
4.5
|
15.2
|
|
|
0.337
|
3.826
|
15
|
|
|
|
|
|
4 1/2
|
17
|
|
|
4.5
|
17
|
|
|
0.38
|
3.74
|
16.77
|
|
|
|
|
|
4 1/2
|
18.9
|
|
|
4.5
|
18.9
|
|
|
0.43
|
3.64
|
18.71
|
|
|
|
|
|
4 1/2
|
21.5
|
|
|
4.5
|
21.5
|
|
|
0.5
|
3.5
|
21.38
|
|
|
|
|
|
4 1/2
|
23.7
|
|
|
4.5
|
23.7
|
|
|
0.56
|
3.38
|
23.59
|
|
|
|
|
|
4 1/2
|
26.1
|
|
|
4.5
|
26.1
|
|
|
0.63
|
3.24
|
26.06
|
|
|
|
|
Conclusion
Understanding tubing dimensions and weight is critical when selecting steel tubing for industrial projects. By referring to standardized tubing dimension charts, engineers and procurement teams can accurately determine the appropriate size, wall thickness, and weight to meet design, fabrication, and transportation requirements.
At Union Steel Industry, we supply a comprehensive range of seamless and welded steel tubing in carbon steel, alloy steel, stainless steel, and specialty materials. Manufactured in accordance with international standards, our tubing products provide reliable performance for construction, mechanical engineering, energy, petrochemical, and industrial applications worldwide.
FAQ
1. What is a tubing dimensions and weight chart?
It is a reference table showing standard tubing sizes, outside diameter, wall thickness, inside diameter, and theoretical weight.
2. How is tubing weight calculated?
Tubing weight is calculated using the outside diameter, wall thickness, material density, and tubing length. Standard charts provide theoretical weights for quick reference.
3. What standards are commonly used for steel tubing?
Common standards include ASTM, ASME, EN, and JIS, depending on the tubing type and application.
4. What is the difference between tubing and pipe?
Tubing is generally specified by its actual outside diameter and wall thickness, while pipe is identified by Nominal Pipe Size (NPS) and Schedule.
5. Why is tubing weight important?
Knowing tubing weight helps estimate transportation costs, structural loads, material quantities, and overall project budgets.
English
Español
Tel : +86-18565811709
Email : 
News
