Use this reference when you need a quick dimensional check for 24 inch Schedule 120 pipe in piping layouts, fabrication documents, material takeoffs, or engineering estimates. The page identifies the NPS and DN designations, then provides the outside diameter, wall thickness, inside diameter, and calculated pipe weight from the authoritative local data.
For related design work, pair this page with the site’s references for pipe schedules, steel pipe dimensions, pipe fittings, and flange dimensions. Those references help connect a straight-pipe dimension check with the components and terminology used in a complete piping system.
Schedule 120 pipe 24 inch (DN600) is a heavy-wall steel pipe size commonly used in piping design, fabrication, drafting, and engineering estimation work. This page provides the standard dimensions, wall thickness, inside diameter, and weight per meter for NPS 24 Schedule 120 pipe based on ASME B36.10.
24 Inch Schedule 120 Pipe Dimensions
- Nominal Pipe Size (NPS): 24 inch
- Diameter Nominal (DN): DN600
- Outside Diameter (OD): 610 mm
- Wall Thickness: 46.02 mm
- Inside Diameter (ID): 517.96 mm
- Pipe Weight: 640.07 kg/m
- Pipe Weight Filled With Water: 850.67 kg/m
- Reference Standard: ASME B36.10
- Pipe Type: Steel Pipe
Schedule 120 Pipe 24 Inch Data Table
| Pipe Size | DN | OD (mm) | Wall Thickness (mm) | ID (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| 24 inch | 600 | 610 | 46.02 | 517.96 | 640.07 |
What Does Schedule 120 Mean?
Schedule 120 refers to a heavy wall thickness series used for steel pipe under ASME B36.10. For the same nominal pipe size, the outside diameter remains fixed while the wall thickness increases according to the schedule. A thicker wall reduces the inside diameter and significantly increases pipe weight.
Typical Uses of 24 Inch Schedule 120 Pipe
NPS 24 Schedule 120 pipe is commonly referenced for heavy-duty industrial piping systems where high wall thickness is required. It may be used in process piping, plant utility systems, structural loading checks, fabrication work, and engineering applications where pipe strength and wall thickness are more critical than maximum flow area.
Why Pipe Weight Matters
Pipe weight per meter is essential for transport planning, crane lifting studies, support design, structural loading, fabrication estimates, and installation planning. For a 24 inch Schedule 120 pipe, the heavy wall thickness results in much higher installed weight than lighter schedules, so accurate weight data is important for engineering and construction work.
24 Inch Schedule 120 Pipe Calculation Notes
The listed weight is based on standard steel pipe dimensions using the outside diameter and wall thickness of the pipe. Actual product weight may vary slightly depending on manufacturing tolerance, material specification, and supplier standard.
Frequently Asked Questions
What is the outside diameter of 24 inch Schedule 120 pipe?
The outside diameter is 610 mm.
What is the wall thickness of DN600 Schedule 120 pipe?
The wall thickness is 46.02 mm.
What is the inside diameter of NPS 24 Schedule 120 pipe?
The inside diameter is 517.96 mm.
How much does 24 inch Schedule 120 pipe weigh?
The approximate weight is 640.07 kg/m.
Which standard covers this pipe size?
This dimension data is based on ASME B36.10 for steel pipe.
Conclusion
Schedule 120 pipe 24 inch (DN600) has an outside diameter of 610 mm, wall thickness of 46.02 mm, inside diameter of 517.96 mm, and a weight of 640.07 kg/m. It is a useful reference for piping design, fabrication, estimating, and heavy-duty industrial engineering work.
How to Read This Pipe Reference
NPS 24 and DN600 are nominal size designations rather than direct statements of the measured inside diameter. The outside diameter is the standard dimensional basis shown in the table, while the inside diameter is determined from the outside diameter and wall thickness.
The schedule identifies a wall-thickness series for the nominal pipe size. It should not be treated by itself as a complete pressure-rating statement. Design verification also depends on the applicable material specification, temperature, loading, joining method, corrosion allowance, code requirements, and project conditions.
Using the Data in Drawings and Estimates
- Use the outside diameter when coordinating pipe with clamps, supports, sleeves, structural openings, and connection details.
- Use the inside diameter when checking the available flow passage or preparing a conceptual hydraulic review.
- Use the wall thickness when reviewing fabrication details, end preparation, clearances, and section properties supplied by the project engineer.
- Use the listed mass per meter for preliminary handling, support, transport, and material estimates. Confirm the purchasing specification and manufacturer data before final procurement or lifting planning.
The accompanying DWG resource can support drafting workflows, but a downloaded drawing should still be checked against the project’s units, layer conventions, connection details, and approved design documents. A useful next internal link is the site’s pipe weight calculator or weight reference, followed by the relevant CAD/DWG pipe detail and pipe support design pages.
Additional Questions About 24 Inch Schedule 120 Pipe
Are NPS and DN interchangeable measurement systems?
They are different nominal designation systems used to identify a comparable pipe size. NPS is customary terminology, while DN is the metric nominal designation. Neither designation should be used as a substitute for checking the listed outside diameter, wall thickness, and inside diameter.
Does Schedule 120 alone determine whether the pipe is suitable for service?
No. The schedule describes the pipe wall-thickness series, but service suitability requires a complete engineering review of material, design conditions, loads, joining details, corrosion considerations, and the governing project code.
Why can the actual delivered weight differ from the reference weight?
Reference weight is based on the stated nominal dimensions and calculation basis. Manufactured pipe can vary within permitted tolerances, and the final procurement specification may also affect the reported mass. Confirm supplier documentation for purchasing and handling decisions.
What other references should be checked with this page?
For a complete piping detail, review related references for pipe schedules, fittings, flanges, pipe supports, weld-end terminology, and CAD/DWG drafting conventions. These cross-references help prevent a straight-pipe dimension from being used without checking the connected components.