This reference provides the dimensional and weight data for Schedule STD Pipe 46 Inch (DN1150). Use the table for the page’s authoritative values, then review the explanations below to understand how the nominal size, standard-weight designation, dimensions, and handling data fit into piping design and procurement work.
Schedule STD Pipe 46 Inch (DN1150) is a steel pipe size commonly used in large industrial and utility piping systems where standard dimensions, structural reliability, and high flow capacity are important. Based on the current page data under ANSI/ASME B36.10, this pipe size has an outside diameter of 1168 mm, an inside diameter of 1148.94 mm, a wall thickness of 9.53 mm, and a pipe weight of 272.27 kg/m.
46 Inch Schedule STD Pipe Dimensions
The following values are listed for NPS 46 Schedule STD pipe, which corresponds to DN1150 in metric designation.
- Pipe Size: NPS 46 Inch
- DN Size: DN1150
- Outside Diameter (OD): 1168 mm
- Inside Diameter (ID): 1148.94 mm
- Wall Thickness: 9.53 mm
- Pipe Weight: 272.27 kg/m
- Pipe Weight Including Water: 1308.51 kg/m
- Reference Standard: ANSI/ASME B36.10
Schedule STD Pipe 46 Inch (DN1150) Data Table
| Pipe Schedule | NPS | DN | OD (mm) | ID (mm) | Wall Thickness (mm) | Weight (kg/m) |
|---|---|---|---|---|---|---|
| STD | 46 Inch | 1150 | 1168 | 1148.94 | 9.53 | 272.27 |
What Is Schedule STD Pipe?
Schedule STD means Standard Weight in the IPS pipe system and is commonly referenced for carbon steel and steel pipe dimensions under ASME B36.10. In practical piping work, Schedule STD is used as a standard wall thickness designation for many nominal pipe sizes. It helps engineers, fabricators, and buyers confirm dimensional compatibility, estimate weight, and coordinate with fittings, flanges, supports, and structural loads.
Common Uses of 46 Inch Schedule STD Pipe
46 inch Schedule STD pipe is commonly used in very large piping systems where high flow capacity and standard steel pipe dimensions are required. This size is often selected for utility, transmission, and industrial services where large-volume flow and reliable dimensional data are important for design and construction.
- Large water transmission lines for plant and utility service
- Cooling water systems in power plants and industrial facilities
- Stormwater and drainage piping in infrastructure projects
- Industrial utility piping for bulk fluid transport
- Pipeline headers and manifolds in large process plants
- Pump suction and discharge lines where large diameter piping is needed
- Municipal and public works projects requiring large steel pipe sizes
- Replacement and upgrade projects where standard pipe dimensions are required
In practical engineering work, this pipe size may be reviewed when checking flow capacity, support loading, transport weight, handling requirements, and installation planning. Final pipe selection should always be verified against project pressure, temperature, fluid type, corrosion allowance, and material specifications.
Why OD, ID, Thickness, and Weight Matter
Exact OD, ID, wall thickness, and weight values are important for support design, material take-off, transport planning, lifting studies, welding preparation, and installation work. For a pipe as large as 46 inch DN1150, accurate weight data is especially useful for crane selection, support design, and logistics planning. Inside diameter is also important for flow calculations and hydraulic capacity review.
NPS 46 and DN1150 Explained
NPS means nominal pipe size in inch units, while DN means diameter nominal in metric units. The current page identifies this pipe as NPS 46 and DN1150, which is the standard naming format widely used in piping drawings, specifications, and procurement documents.
Conclusion
Schedule STD Pipe 46 Inch (DN1150) is listed on the current page with 1168 mm OD, 1148.94 mm ID, 9.53 mm wall thickness, and 272.27 kg/m weight. It is a useful steel pipe reference for engineers, designers, and buyers who need standard dimensional and weight data for large piping systems and project coordination.
How to Use This 46 Inch Pipe Reference
Start with the OD when checking physical clearance, fittings, flanges, supports, and drawing geometry. Use the listed ID when reviewing hydraulic calculations or equipment connections. The wall thickness helps identify the dimensional section, while the listed pipe weight supports material take-offs, support-load reviews, transportation planning, and lifting coordination.
Schedule STD is a dimensional designation, not a complete design specification. A project review still needs to address the service fluid, operating pressure and temperature, corrosion allowance, material grade, joining method, applicable piping code, and fabrication requirements. The page values should therefore be coordinated with the project specification and verified by the responsible engineer.
Drafting and Procurement Considerations
When this size appears on a piping layout, isometric, bill of materials, or purchase specification, identify it consistently as NPS 46 and DN1150, together with the STD designation and the required material specification. Confirm that connected fittings, flanges, valves, supports, and equipment nozzles use compatible dimensional references before fabrication or ordering.
The downloadable DWG reference can support drafting and coordination workflows. Treat CAD geometry as a reference resource and confirm dimensions against the authoritative table and project documents before using it for fabrication, detailing, or field modification.
Related Pipe Reference Topics
- Compare this entry with other pipe schedules and wall-thickness references when reviewing alternative sections.
- Use the site’s pipe dimensions and weight references for material take-offs and support coordination.
- Review pipe fittings and flange dimensions when checking connection compatibility.
- Consult the piping terminology reference when interpreting NPS, DN, OD, ID, and schedule notation.
Frequently Asked Questions
What does Schedule STD mean for this pipe?
Schedule STD means Standard Weight in the inch-based IPS pipe system. It identifies a standard dimensional wall designation; it does not by itself define the pipe material, allowable pressure, corrosion allowance, or complete design suitability.
What are NPS 46 and DN1150?
NPS 46 is the nominal pipe size expressed in inch-based terminology, while DN1150 is the corresponding metric nominal designation used in many drawings, specifications, and procurement documents.
Why are both OD and ID listed?
OD is used for physical layout, clearance, fittings, flanges, and support coordination. ID is relevant to flow-area and hydraulic reviews, as well as connections where the internal passage must be considered.
Why is pipe weight important for a large pipe?
Pipe weight affects material take-offs, transport, lifting, support loading, and installation planning. The page also lists a separate weight including water, which can assist with reviewing supported operating conditions when used with the applicable project assumptions.
Can the DWG file be used directly for fabrication?
The DWG is a drafting reference. Before fabrication or field use, verify its geometry and dimensions against the page data, the project drawings, connected components, and the responsible engineer’s requirements.
Does the STD designation confirm that the pipe is suitable for a project?
No. Final selection must also consider service conditions, material requirements, pressure and temperature design, corrosion allowance, applicable codes, joining details, and project specifications.