Use this reference when you need a quick dimensional check for 30 inch Schedule 10 pipe in a piping layout, estimate, fabrication package, or CAD workflow. The page identifies the NPS and DN designations, then presents the outside diameter, wall thickness, inside diameter, and pipe weight from the local reference data.
For related terminology, compare this page with the site’s references for pipe schedules, pipe dimensions, and nominal pipe size and DN designations. These topics help prevent confusion between a nominal size, an actual measured diameter, and a wall-thickness series.
Schedule 10 pipe 30 inch (DN750) is a large-diameter steel pipe size commonly used as a reference in piping design, drafting, fabrication, and estimation work. This page provides the standard dimensions, wall thickness, inside diameter, and weight per meter for NPS 30 Schedule 10 pipe based on ASME B36.10.
30 Inch Schedule 10 Pipe Dimensions
- Nominal Pipe Size (NPS): 30 inch
- Diameter Nominal (DN): DN750
- Outside Diameter (OD): 762 mm
- Wall Thickness: 7.92 mm
- Inside Diameter (ID): 746.16 mm
- Pipe Weight: 147.29 kg/m
- Pipe Weight Filled With Water: 584.34 kg/m
- Reference Standard: ASME B36.10
Schedule 10 Pipe 30 Inch Data Table
| Pipe Size | DN | OD (mm) | Wall Thickness (mm) | ID (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| 30 inch | 750 | 762 | 7.92 | 746.16 | 147.29 |
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 30 Inch Schedule 10 Pipe
NPS 30 Schedule 10 pipe is commonly used where large flow capacity is needed with relatively lighter wall thickness than heavier schedules. It may be used in water transfer lines, utility systems, low-pressure process piping, drainage applications, and general plant layout or fabrication reference work.
Why Pipe Weight Matters
Pipe weight per meter is important for transport planning, support design, structural loading, fabrication estimates, and lifting calculations. In large-diameter piping systems, total line weight can significantly affect support spacing, installation methods, and project cost.
30 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 30 inch Schedule 10 pipe?
The outside diameter is 762 mm.
What is the wall thickness of DN750 Schedule 10 pipe?
The wall thickness is 7.92 mm.
What is the inside diameter of NPS 30 Schedule 10 pipe?
The inside diameter is 746.16 mm.
How much does 30 inch Schedule 10 pipe weigh?
The approximate weight is 147.29 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 30 inch (DN750) has an outside diameter of 762 mm, wall thickness of 7.92 mm, inside diameter of 746.16 mm, and a weight of 147.29 kg/m. It is a useful reference for piping design, drafting, estimating, and fabrication work.
How to Use This 30 Inch Pipe Reference
Start with the dimensional data when checking a drawing, material takeoff, or supplier quotation. The outside diameter is the primary envelope dimension for layout and coordination, while the inside diameter is useful when reviewing the available flow passage. Wall thickness helps distinguish this schedule from other wall-thickness selections for the same nominal pipe size.
Because NPS 30 and DN750 are nominal designations, they should not be treated as interchangeable measuring instructions. For fabrication or inspection, confirm the applicable purchase specification, material grade, manufacturing tolerance, end preparation, and project requirements rather than relying on the nominal designation alone.
Schedule and Design Verification
A schedule identifies a pipe wall-thickness series; it does not by itself establish a complete pressure, temperature, corrosion, joining, or structural design basis. Engineering verification should consider the service, design conditions, material requirements, code basis, loads, supports, and connection details. The listed pipe weight is useful for estimating and coordination, but support and lifting decisions should also account for the assembled system and project-specific conditions.
Drafting and CAD Workflow
Use the dimensional values to coordinate the pipe envelope with fittings, flanges, valves, supports, insulation, access clearances, and connected equipment. The downloadable DWG can support drafting and layout work, but the drawing should be checked against the project’s required units, layer conventions, revision status, and fabrication documents before release.
For connected components, see the site’s related references for pipe fittings, pipe flanges, and pipe supports. These links create a practical path from straight-pipe dimensions to the surrounding piping system.
Practical Questions About NPS 30 Schedule 10 Pipe
Is NPS 30 the same as a measured 30-inch outside diameter?
No. NPS is a nominal pipe-size designation. The actual outside diameter is the dimensional value listed in the reference data and should be used for layout, coordination, and inspection checks.
Does Schedule 10 alone determine whether the pipe is suitable for service?
No. Schedule 10 describes the wall-thickness series. Service suitability also depends on the material, design conditions, applicable piping code, corrosion requirements, joining method, supports, and project specifications.
Why is the water-filled weight listed separately?
The water-filled figure separates the pipe’s own mass from the additional operating load associated with water inside the pipe. This distinction can matter when reviewing support loads, transportation, installation, and structural coordination.
Can the DWG be used directly for fabrication?
Use the DWG as a drafting reference and verify it against the project drawing standard, current dimensions, component interfaces, tolerances, and approved fabrication documents before manufacturing.