Use this page as a quick reference for 6 inch Schedule 5 pipe dimensions when checking DN150 layouts, material takeoffs, fabrication drawings, or piping coordination. The source data below identifies the outside diameter, inside diameter, wall thickness, and unit weight for this pipe designation.
For related design work, compare this reference with the site’s guides to pipe schedules, nominal pipe size, pipe fittings, and flange dimensions. Those topics help connect the dimensional data to the components and drawings used in a complete piping system.
Schedule 5 Pipe 6 Inch (DN150) is a steel pipe size commonly used in industrial piping systems that require good flow capacity with a relatively light wall thickness. This pipe size is often used in utility piping, water systems, low-pressure industrial service, and general steel pipe fabrication work.
This dimension data is based on ANSI/ASME B36.10, which is the standard commonly used for carbon steel pipe dimensions.
6 Inch Schedule 5 Pipe Dimensions
- Pipe Schedule: 5
- Nominal Pipe Size: 6 Inch
- DN Size: DN150
- Outside Diameter (OD): 168.3 mm
- Inside Diameter (ID): 162.76 mm
- Wall Thickness: 2.77 mm
- Pipe Weight: 11.31 kg/m
- Pipe Weight Including Water: 32.1 kg/m
- Standard: ANSI/ASME B36.10
Schedule 5 Pipe 6 Inch Dimension Table
| Pipe Schedule | NPS (Inch) | DN (mm) | OD (mm) | ID (mm) | Wall Thickness (mm) | Weight (kg/m) |
|---|---|---|---|---|---|---|
| 5 | 6 | 150 | 168.3 | 162.76 | 2.77 | 11.31 |
What Is 6 Inch Schedule 5 Pipe?
A 6 inch Schedule 5 pipe is a steel pipe with a nominal size of 6 inches and a relatively thin wall thickness compared with heavier schedules. For this size, the outside diameter is fixed at 168.3 mm, while the inside diameter is 162.76 mm based on a wall thickness of 2.77 mm.
Schedule 5 pipe is often selected when a project needs good flow capacity, reduced pipe weight, and easier handling compared with thicker wall pipes. It is commonly referenced in steel piping design, drafting, fabrication, and material takeoff work.
Where Is Schedule 5 Pipe 6 Inch Used?
This pipe size is commonly used in applications that need good flow capacity with relatively light wall thickness. Typical uses include:
- Water transfer and distribution systems
- Utility and low-pressure industrial piping
- Process and service lines
- Pipe spool fabrication and layout work
- General steel piping projects
Why Pipe Dimensions Matter
Accurate 6 inch Schedule 5 pipe dimensions are important for piping layout, fabrication, transport planning, support design, and installation work. Engineers and designers often check OD, ID, wall thickness, and weight before selecting supports, fittings, welding details, and handling methods.
The outside diameter is important for matching supports, clamps, and pipe accessories. The inside diameter helps estimate internal flow area and system capacity. The wall thickness affects mechanical strength and specification compliance, while the pipe weight per meter is useful for lifting plans, transport, and structural loading calculations.
6 Inch Schedule 5 Pipe Weight Information
The nominal weight of this pipe size is 11.31 kg/m. When filled with water, the combined weight becomes approximately 32.1 kg/m. This information is useful for pipe support design, structural coordination, and lifting preparation in piping systems.
Difference Between NPS 6 and DN150
NPS 6 is the inch-based nominal pipe size, while DN150 is the metric designation used in international drawings and specifications. Both terms refer to the same nominal pipe size, and users may search by either inch size or DN format depending on project standards.
Common Search Terms for This Pipe Size
Users may also search for this pipe using related keywords such as 6 inch Schedule 5 pipe dimensions, DN150 Schedule 5 pipe dimensions, 6 inch pipe weight per meter, DN150 pipe dimensions, or DN150 sch 5 pipe dimensions.
Conclusion
Schedule 5 Pipe 6 Inch (DN150) has an outside diameter of 168.3 mm, an inside diameter of 162.76 mm, a wall thickness of 2.77 mm, and a weight of 11.31 kg/m. It is a useful steel pipe reference size for design, drafting, fabrication, and procurement work.
This page provides a quick reference for engineers, drafters, fabricators, and buyers who need reliable 6 inch Schedule 5 pipe dimensions and DN150 pipe dimensions in one place.
How to Use This DN150 Pipe Reference
Start with the nominal designation when searching drawings or specifications: NPS 6 and DN150 identify the same nominal pipe size, while the schedule identifies the listed wall-thickness designation. For fabrication and coordination, use the stated outside diameter when checking clamps, supports, sleeves, and fitting interfaces.
The inside diameter is useful for preliminary flow-area comparisons and clearance checks. The listed wall thickness and pipe weight should be carried into applicable engineering, support, lifting, and transport reviews rather than treated as a complete design basis. Confirm material grade, manufacturing requirements, joining method, corrosion allowance, service conditions, and governing project specifications before procurement or installation.
Drafting and CAD Considerations
The accompanying DWG resource can help drafters start a plan, section, or piping layout using the referenced pipe size. Check the drawing units, layer conventions, insertion scale, centerline assumptions, and connection details before incorporating the file into a project drawing set. A pipe outline alone does not establish fitting geometry, weld details, support requirements, or code compliance.
When developing a model or takeoff, pair this page with references for pipe fittings, flanges, pipe supports, and piping terminology. These related references provide useful next steps for connecting nominal pipe dimensions with the components shown on fabrication and design drawings.
Before Selecting the Pipe
- Confirm that the nominal size and schedule match the project specification.
- Check whether the specified material and manufacturing standard are appropriate for the service.
- Coordinate the outside diameter with supports, clamps, sleeves, fittings, and adjacent equipment.
- Use the stated weight for preliminary coordination, then complete project-specific structural and lifting checks.
- Verify that the CAD reference matches the drawing standard and required level of detail.
Frequently Asked Questions
What is the outside diameter of 6 inch Schedule 5 pipe?
The listed outside diameter is 168.3 mm.
What is the inside diameter of DN150 Schedule 5 pipe?
The listed inside diameter is 162.76 mm, based on the source dimensions for this pipe designation.
What is the wall thickness of 6 inch Schedule 5 pipe?
The listed wall thickness is 2.77 mm.
How much does 6 inch Schedule 5 pipe weigh?
The listed pipe weight is 11.31 kg/m. The source also lists a combined pipe-and-water weight of approximately 32.1 kg/m.
Are NPS 6 and DN150 the same nominal pipe size?
Yes. NPS 6 is the inch-based designation and DN150 is the metric designation used for the same nominal pipe size.
What standard is referenced for these dimensions?
The page identifies ANSI/ASME B36.10 as the dimensional standard reference for this carbon steel pipe data. Always check the applicable project specification and current governing requirements before relying on a dimension for procurement or design.