About Us
Eastern Steel Manufacturing Co.,Ltd is a leading manufacturer and distributor of seamless steel pipe, welded steel pipe, OCTG products and fittings. We supply first-step processing, semi-finished parts and finished parts to help our clients meet fabrication requirements beyond their capacity or to improve operations by moving forward the pre-production processing.
News
In this column you can find the steel pipe related articles you need, including industry trends, product standards and materials, and some technical guidelines.
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Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Facility
Eastern Steel Manufacturing Co.,Ltd not only improve product production and sales services, but also provide additional value-added services. As long as you need, we can complete your specific needs together.
Projects
Many years of large-scale project experience in various fields（Oil & Gas, Construction, Power Energy, Marine & Offshore, Water Treatment, Exploration & Drilling Services, Pipeline & Petrochemical etc.）, professional project team is responsible from receiving until the end of the project.
The table below lists seamless steel pipe weights by NPS, OD, Schedule, and wall thickness, with values shown in kg/m, lb/ft, and kg per 6 m.
| NPS | OD (mm) | Schedule / Class | WT (mm) | Weight (kg/m) | Weight (lb/ft) | Weight (kg/6m) |
|---|---|---|---|---|---|---|
| 1/4" | 13.7 | SCH 40 / STD | 2.24 | 0.63 | 0.43 | 3.8 |
| SCH 80 / XS | 3.02 | 0.8 | 0.54 | 4.77 | ||
| 1/2" | 21.3 | SCH 40 / STD | 2.77 | 1.27 | 0.85 | 7.62 |
| SCH 80 / XS | 3.73 | 1.62 | 1.09 | 9.72 | ||
| SCH 160 | 4.78 | 1.95 | 1.31 | 11.7 | ||
| 3/4" | 26.7 | SCH 40 / STD | 2.87 | 1.69 | 1.13 | 10.14 |
| SCH 80 / XS | 3.91 | 2.2 | 1.48 | 13.2 | ||
| 1" | 33.4 | SCH 40 / STD | 3.38 | 2.5 | 1.68 | 15 |
| SCH 80 / XS | 4.55 | 3.24 | 2.18 | 19.44 | ||
| 1-1/4" | 42.2 | SCH 40 / STD | 3.56 | 3.39 | 2.28 | 20.34 |
| SCH 80 / XS | 4.85 | 4.47 | 3 | 26.82 | ||
| 1-1/2" | 48.3 | SCH 40 / STD | 3.68 | 4.05 | 2.72 | 24.3 |
| SCH 80 / XS | 5.08 | 5.41 | 3.64 | 32.46 | ||
| 2" | 60.3 | SCH 40 / STD | 3.91 | 5.44 | 3.66 | 32.64 |
| SCH 80 / XS | 5.54 | 7.48 | 5.03 | 44.88 | ||
| SCH 160 | 8.74 | 11.12 | 7.47 | 66.72 | ||
| 2-1/2" | 73 | SCH 40 / STD | 5.16 | 8.63 | 5.8 | 51.78 |
| SCH 80 / XS | 7.01 | 11.41 | 7.67 | 68.46 | ||
| 3" | 88.9 | SCH 40 / STD | 5.49 | 11.29 | 7.59 | 67.74 |
| SCH 80 / XS | 7.62 | 15.27 | 10.26 | 91.62 | ||
| SCH 160 | 11.13 | 21.35 | 14.35 | 128.1 | ||
| 4" | 114.3 | SCH 40 / STD | 6.02 | 16.07 | 10.8 | 96.42 |
| SCH 80 / XS | 8.56 | 22.32 | 15 | 133.92 | ||
| SCH 120 | 11.13 | 28.32 | 19.03 | 169.92 | ||
| SCH 160 | 13.49 | 33.54 | 22.54 | 201.24 | ||
| 6" | 168.3 | SCH 40 / STD | 7.11 | 28.26 | 18.99 | 169.56 |
| SCH 80 / XS | 10.97 | 42.56 | 28.6 | 255.36 | ||
| SCH 160 | 18.26 | 67.56 | 45.4 | 405.36 | ||
| 8" | 219.1 | SCH 20 | 6.35 | 33.31 | 22.38 | 199.86 |
| SCH 40 / STD | 8.18 | 42.55 | 28.59 | 255.3 | ||
| SCH 80 / XS | 12.7 | 64.64 | 43.43 | 387.84 | ||
| SCH 160 | 22.23 | 107.86 | 72.48 | 647.16 | ||
| 10" | 273 | SCH 20 | 6.35 | 41.77 | 28.07 | 250.62 |
| SCH 40 / STD | 9.27 | 60.31 | 40.52 | 361.86 | ||
| SCH 80 / XS | 12.7 | 81.53 | 54.78 | 489.18 | ||
| SCH 160 | 28.58 | 172.33 | 115.8 | 1033.98 | ||
| 12" | 323.8 | SCH 20 | 6.35 | 49.72 | 33.41 | 298.32 |
| STD | 9.53 | 73.88 | 49.65 | 443.28 | ||
| SCH 40 | 10.31 | 79.73 | 53.58 | 478.38 | ||
| SCH 80 / XS | 12.7 | 97.43 | 65.47 | 584.58 | ||
| 14" | 355.6 | SCH 30 / STD | 9.53 | 81.33 | 54.65 | 487.98 |
| SCH 40 | 11.13 | 94.55 | 63.53 | 567.3 | ||
| SCH 80 / XS | 15.09 | 126.71 | 85.14 | 760.26 | ||
| 16" | 406.4 | SCH 30 / STD | 9.53 | 93.27 | 62.67 | 559.62 |
| SCH 40 | 12.7 | 123.3 | 82.85 | 739.8 | ||
| SCH 80 / XS | 21.44 | 203.54 | 136.77 | 1221.24 | ||
| 20" | 508 | SCH 20 / STD | 9.53 | 117.15 | 78.72 | 702.9 |
| SCH 40 | 15.09 | 183.42 | 123.25 | 1100.52 | ||
| SCH 80 | 20.62 | 247.83 | 166.53 | 1486.98 | ||
| XS | 12.7 | 155.12 | 104.24 | 930.72 |
The listed values are theoretical weights based on nominal pipe dimensions and are intended for reference and material estimation. The 6 m value is based on a 6 m reference length; actual pipe weight varies with the ordered length.
For weight calculations using a specific pipe size and length, see our Seamless Steel Pipe Weight Calculator.
To find the weight of a seamless steel pipe, first locate the required NPS, then select the corresponding Schedule. The chart provides the outside diameter, wall thickness, and theoretical weight in kg/m and lb/ft.
For example, an NPS 4 SCH 40 seamless pipe has an OD of 114.3 mm and a theoretical weight of 16.07 kg/m (10.80 lb/ft). The kg/6m value gives the approximate theoretical weight of a 6 m pipe.
For the same NPS, a higher Schedule generally means a thicker wall and higher weight per unit length. The chart includes SCH 20, SCH 30, SCH 40, SCH 80, SCH 120, SCH 160, as well as STD and XS designations where applicable.
Q1. How much does a seamless steel pipe weigh?
The weight depends on the NPS, outside diameter, wall thickness, and Schedule. The chart lists theoretical weight in kg/m, lb/ft, and kg per 6 m.
Q2. How much does a seamless steel pipe weigh per meter?
It depends on the pipe size and wall thickness. Use the Weight (kg/m) column to check the theoretical weight per meter.
Q3. How do I find pipe weight by Schedule?
Locate the required NPS and select the Schedule. The corresponding wall thickness and weight per meter are listed in the same row.
Q4. What is the difference between kg/m and lb/ft?
Both are units for pipe weight per unit length. kg/m shows weight per meter, while lb/ft shows weight per foot.
Q5. Can I calculate the total weight of seamless steel pipes from the chart?
Yes. Multiply the kg/m value by the pipe length and quantity to estimate the total theoretical weight.
Read more: Seamless Pipe Weight Formula Explained
E-mail: sales@eastern-steels.com
