Carbon steel pipe
Rigid ferrous pipe for industrial pipework where strength and a weldable or threaded connection are required.
Supplier catalogue example. Size, material and configuration are confirmed for the quoted item.
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Galvanised steel pipe
Steel pipe with a zinc coating, commonly selected where a protective surface finish is needed.
Common uses
Water services, general plant pipework and fabricated assemblies where the specified coating is suitable.
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Product information
Specifications & documents
- Configuration options
- Threaded or plain ends; coating specification; cut lengths or full lengths.
- Application
- Water services, general plant pipework and fabricated assemblies where the specified coating is suitable.
Use the dimension tables below to select a standard and size. Confirm material, tolerance and operating limits for the offered item.
Selected reference fields compared on 2026-10-05. Shared carbon-steel dimensional reference checked. Exact galvanised supply standard remains a quoting requirement.
Technical references
- Pipe Dimensions ↗Drawing / dimensions · Confirm document region for the quoted product · Revision: 8 April 2021
- Pipe Dimensions ↗Drawing / dimensions · Confirm document region for the quoted product · Revision: 8 April 2021
Size reference
Pipe dimensions
Choose a standard and size to check the reference dimensions. Use the measurements that match your existing part or project specification.
| Size | Outside Ø | Nominal wall | Calculated ID* |
|---|---|---|---|
| DN15 / NPS 1/2 | 21.3 | 2.77 | 15.76 |
| DN20 / NPS 3/4 | 26.7 | 2.87 | 20.96 |
| DN25 / NPS 1 | 33.4 | 3.38 | 26.64 |
| DN32 / NPS 1 1/4 | 42.2 | 3.56 | 35.08 |
| DN40 / NPS 1 1/2 | 48.3 | 3.68 | 40.94 |
| DN50 / NPS 2 | 60.3 | 3.91 | 52.48 |
| DN65 / NPS 2 1/2 | 73 | 5.16 | 62.68 |
| DN80 / NPS 3 | 88.9 | 5.49 | 77.92 |
| DN90 / NPS 3 1/2 | 101.6 | 5.74 | 90.12 |
| DN100 / NPS 4 | 114.3 | 6.02 | 102.26 |
| DN125 / NPS 5 | 141.3 | 6.55 | 128.2 |
| DN150 / NPS 6 | 168.3 | 7.11 | 154.08 |
| DN200 / NPS 8 | 219.1 | 8.18 | 202.74 |
| DN250 / NPS 10 | 273.1 | 9.27 | 254.56 |
| DN300 / NPS 12 | 323.9 | 10.31 | 303.28 |
ID is calculated from nominal OD minus twice nominal wall; actual bore depends on manufacturing tolerances.
Dimension sources and scope
Carbon steel nominal pipe dimensions only. Schedule 40/80 and stainless 40S/80S are not interchangeable at every size. Galvanised pipe supplied to other standards must be identified separately.
Reference checked September 2026. Final dimensions, tolerances, material and operating rating are confirmed for the offered item.
Choose the right variant
Details to confirm
- Outside diameter and wall thickness
- Thread form and end connection
- Internal and external exposure
Selection note
A galvanised finish does not establish suitability for every fluid or chemical.
These details describe the product family. The offered item’s dimensions, materials, operating limits and required approvals are confirmed before you order.
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