Use this reference when you need a quick dimensional check for 10 inch Schedule 100 pipe in piping layouts, material takeoffs, fabrication documents, or CAD work. The page identifies the relationship between NPS, DN, outside diameter, wall thickness, inside diameter, and pipe weight while keeping the source table as the controlling dimensional reference.
For broader comparisons, connect this page with related references for pipe schedules, NPS and DN conversion, pipe weight, steel pipe dimensions, and pipe fittings and flanges. Those topics help readers move from a single pipe-size lookup to a complete piping component check.
Schedule 100 pipe 10 inch (DN250) 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 10 Schedule 100 pipe based on ASME B36.10.
10 Inch Schedule 100 Pipe Dimensions
- Nominal Pipe Size (NPS): 10 inch
- Diameter Nominal (DN): DN250
- Outside Diameter (OD): 273.1 mm
- Wall Thickness: 18.26 mm
- Inside Diameter (ID): 236.48 mm
- Pipe Weight: 114.71 kg/m
- Pipe Weight Filled With Water: 158.6 kg/m
- Reference Standard: ASME B36.10
Schedule 100 Pipe 10 Inch Data Table
| Pipe Size | DN | OD (mm) | Wall Thickness (mm) | ID (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| 10 inch | 250 | 273.1 | 18.26 | 236.48 | 114.71 |
What Does Schedule 100 Mean?
Schedule 100 refers to a heavier wall thickness series than lighter schedules such as Schedule 10 or Schedule 40. 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 10 Inch Schedule 100 Pipe
NPS 10 Schedule 100 pipe is commonly referenced for heavy-duty industrial piping systems where higher wall thickness is required. It may be used in process piping, plant utility systems, fabrication work, structural loading checks, 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, lifting studies, support design, structural loading, fabrication estimates, and installation planning. For a 10 inch Schedule 100 pipe, the heavy wall thickness creates a much higher installed weight than lighter schedules, so accurate weight data is important for engineering and construction work.
10 Inch Schedule 100 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 10 inch Schedule 100 pipe?
The outside diameter is 273.1 mm.
What is the wall thickness of DN250 Schedule 100 pipe?
The wall thickness is 18.26 mm.
What is the inside diameter of NPS 10 Schedule 100 pipe?
The inside diameter is 236.48 mm.
How much does 10 inch Schedule 100 pipe weigh?
The approximate weight is 114.71 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 100 pipe 10 inch (DN250) has an outside diameter of 273.1 mm, wall thickness of 18.26 mm, inside diameter of 236.48 mm, and a weight of 114.71 kg/m. It is a useful reference for piping design, fabrication, estimating, and heavy-duty industrial engineering work.
How to Use This Pipe Reference
Start with the nominal designation: NPS 10 and DN250 identify the same nominal pipe size in inch-based and metric terminology. The nominal size should not be treated as the measured outside or inside diameter; use the dimensional entries and table on this page when preparing drawings, checking clearances, or selecting connected components.
Schedule, wall thickness, and flow area
Schedule identifies a wall-thickness series for a given nominal pipe size. For this entry, the outside diameter is held as the size reference while the heavier Schedule 100 wall reduces the available inside diameter and increases the pipe’s mass. This distinction matters when comparing flow area, connection geometry, fabrication details, and installation loads with another schedule.
Weight and project checks
The listed mass per meter is useful for estimating, support reactions, lifting plans, transport, and structural loading reviews. The water-filled figure should be considered separately from the pipe-only figure when evaluating operating or temporary loads. Final calculations should also account for the specified material, corrosion allowance where applicable, fittings, valves, insulation, contents, supports, and project design requirements.
Drawing and procurement notes
When this size is used in a drawing or material requisition, state the nominal size, schedule, material specification, applicable dimensional standard, and any required manufacturing or inspection requirements. Confirm that mating flanges, fittings, valves, and the selected CAD geometry correspond to the same dimensional basis. The downloadable DWG can support drafting workflows, but the project specification and verified component data remain controlling.
For useful next steps, link this reference to pages covering Schedule 40 versus Schedule 100, pipe flange dimensions, butt-weld fittings, pipe support loads, and DWG pipe blocks. These related references provide practical context without replacing the authoritative values in the table above.
Additional Reference Questions
Does Schedule 100 alone specify the pipe material?
No. Schedule describes the dimensional wall-thickness series. Material grade, manufacturing requirements, corrosion resistance, inspection, and design conditions must be confirmed separately from the project specification or procurement documents.
Is the Schedule 100 designation itself a pressure rating?
No. A schedule designation is not, by itself, a complete allowable-pressure specification. Pressure suitability depends on factors such as material, temperature, manufacturing basis, joint condition, corrosion allowance, code requirements, and the applicable engineering design.
Why should the outside diameter be checked before selecting a fitting?
Nominal size labels do not replace dimensional verification. Confirm the pipe outside diameter and wall thickness against the fitting, flange, valve, or connection data so the selected components are compatible with the intended piping system.
Can the listed pipe weight be used as the final support load?
It is a useful reference value, but a final support or structural check should include the actual pipe contents, fittings, valves, insulation, supports, operating conditions, and any project-specific load combinations. Confirm the product data and design assumptions before construction.