Schedule 10 pipe 10 inch (DN250) is a useful reference for engineers, designers, fabricators, estimators, and CAD drafters working with steel piping. This page brings the key dimensional and weight data into one place, while the accompanying explanations clarify how nominal size, outside diameter, wall thickness, and inside diameter relate to one another.
Use the table below when preparing material takeoffs, checking a piping layout, developing a support arrangement, or selecting a model for a plant design drawing. For related dimensions, compare this page with the site’s references for pipe schedules, NPS and DN conversion, pipe fittings, and steel pipe flanges.
Schedule 10 pipe 10 inch (DN250) is a standard steel pipe size commonly used in piping design, fabrication, drafting, and estimation work. This page provides the standard dimensions, wall thickness, inside diameter, and weight per meter for NPS 10 Schedule 10 pipe based on ASME B36.10.
10 Inch Schedule 10 Pipe Dimensions
- Nominal Pipe Size (NPS): 10 inch
- Diameter Nominal (DN): DN250
- Outside Diameter (OD): 273.1 mm
- Wall Thickness: 4.19 mm
- Inside Diameter (ID): 264.72 mm
- Pipe Weight: 27.78 kg/m
- Pipe Weight Filled With Water: 82.74 kg/m
- Reference Standard: ASME B36.10
Schedule 10 Pipe 10 Inch Data Table
| Pipe Size | DN | OD (mm) | Wall Thickness (mm) | ID (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| 10 inch | 250 | 273.1 | 4.19 | 264.72 | 27.78 |
What Does Schedule 10 Mean?
Schedule 10 refers to the wall thickness series of the pipe. For the same nominal pipe size, the outside diameter remains fixed while the wall thickness changes depending on the schedule. A thicker wall generally increases pipe weight and reduces the inside diameter.
Typical Uses of 10 Inch Schedule 10 Pipe
NPS 10 Schedule 10 pipe is commonly used in water transfer lines, utility systems, low-pressure process piping, drainage applications, and general fabrication work where a lighter wall thickness is suitable. It is also a practical reference size for material takeoff, support planning, and piping layout.
Why Pipe Weight Matters
Pipe weight per meter is important for transport planning, support design, structural loading, fabrication estimates, and lifting calculations. Even in medium-size piping systems, installed weight can affect support spacing, handling methods, and project cost.
10 Inch Schedule 10 Pipe Calculation Notes
The listed weight is based on standard steel pipe dimension data using the outside diameter and wall thickness of the pipe. Actual product weight may vary slightly depending on manufacturing tolerance, material grade, and supplier standard.
Frequently Asked Questions
What is the outside diameter of 10 inch Schedule 10 pipe?
The outside diameter is 273.1 mm.
What is the wall thickness of DN250 Schedule 10 pipe?
The wall thickness is 4.19 mm.
What is the inside diameter of NPS 10 Schedule 10 pipe?
The inside diameter is 264.72 mm.
How much does 10 inch Schedule 10 pipe weigh?
The approximate weight is 27.78 kg/m.
Which standard covers this pipe size?
This dimension data is based on ASME B36.10 for welded and seamless wrought steel pipe.
Conclusion
Schedule 10 pipe 10 inch (DN250) has an outside diameter of 273.1 mm, wall thickness of 4.19 mm, inside diameter of 264.72 mm, and a weight of 27.78 kg/m. It is a useful reference for piping design, drafting, estimating, and fabrication work.
How to Read the 10 Inch Schedule 10 Pipe Data
The nominal size identifies the pipe designation used in piping practice; it is not necessarily the measured inside or outside diameter. For this pipe, the listed NPS designation corresponds to DN250, while the outside diameter is the controlling dimensional reference for many layout and connection details.
Wall thickness is important because it separates the outside surface from the bore. The inside diameter shown in the source data is the resulting clear internal dimension for this schedule. When checking a drawing, confirm that the pipe representation, fitting connection, and flange selection use compatible nominal size and outside-diameter conventions.
Schedule and wall thickness
A schedule identifies a wall-thickness series rather than a pressure rating by itself. The schedule should therefore be read together with the pipe material, manufacturing specification, design temperature, design pressure, corrosion allowance, joining method, and applicable project requirements. Do not use the schedule designation alone to approve a piping component for service.
Using the weight data in design work
The listed pipe weight per meter supports preliminary estimating, transport planning, lifting reviews, and piping support calculations. For an installed line, the engineering review may also need to account for fittings, flanges, valves, insulation, contents, temporary loads, and support reactions. The water-filled value is a reference condition from the source data; actual operating contents and accessories should be evaluated separately.
Drafting and CAD checks
When using the accompanying DWG resource, verify the drawing units, layer conventions, connection points, and project drafting standards before incorporating the geometry into a model. The dimensional table remains the controlling reference for this page. A useful workflow is to check the pipe against related elbow dimensions, tee dimensions, flange dimensions, and pipe support details before issuing fabrication or construction documents.
Additional Questions About 10 Inch Schedule 10 Pipe
Is Schedule 10 the same as a pressure class?
No. Schedule 10 describes a pipe wall-thickness series. Service suitability requires a separate engineering review of the material, design conditions, joining details, applicable specifications, and project requirements.
Can nominal size be used as the measured pipe diameter?
No. Nominal size is a standardized designation. Use the listed outside diameter, wall thickness, and inside diameter when checking clearances, fittings, supports, and CAD geometry.
Why might a supplier’s stated weight differ from the reference value?
Published or delivered weight can vary because of manufacturing tolerances, material grade, product condition, and supplier conventions. Use certified product data for procurement and final calculations.
What should be checked before using the DWG file?
Confirm units, scale, drawing orientation, connection details, and compatibility with the project’s CAD standards. The file is a drafting aid and should be checked against the dimensional data before use.