Schedule XS Pipe 46 Inch (DN1150) is a large steel pipe size used in industrial piping systems, utility lines, water transmission projects, plant construction, and heavy fabrication work. This page provides a clear reference for the main dimensions and weight of 46 inch XS pipe based on ANSI/ASME B36.10.
For piping engineers, designers, estimators, site supervisors, and fabrication teams, accurate pipe dimension data is important for layout work, material takeoff, support design, transport planning, and installation review. This guide presents the essential size data in a simple format that is easier to use in real projects.
46 Inch Schedule XS Pipe Dimensions
- Pipe Size: 46 Inch
- Nominal Diameter: DN1150
- Pipe Schedule: XS (Extra Strong)
- Outside Diameter (OD): 1168 mm
- Inside Diameter (ID): 1142.6 mm
- Wall Thickness: 12.7 mm
- Pipe Weight: 361.84 kg/m
- Pipe Weight Including Water: 1386.68 kg/m
- Reference Standard: ANSI/ASME B36.10
Schedule XS Pipe 46 Inch Table
| NPS | DN | OD (mm) | ID (mm) | Wall Thickness (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| 46″ | 1150 | 1168 | 1142.6 | 12.7 | 361.84 |
What Does Schedule XS Mean?
Schedule XS stands for Extra Strong. It is a pipe wall classification used in steel pipe standards. The schedule affects the wall thickness, which then affects the inside diameter, pipe weight, and the overall handling and design considerations of the pipe.
For large sizes such as 46 inch DN1150 pipe, this becomes especially important because thicker walls increase total weight significantly and can affect lifting plans, support loads, and fabrication requirements.
Why 46 Inch DN1150 Pipe Dimensions Matter
Knowing the exact dimensions of 46 inch Schedule XS pipe helps in many parts of piping work:
- Fabrication: OD and wall thickness are needed for cutting, beveling, welding, and fit-up.
- Support Design: Pipe weight per meter is used when checking supports and structural loads.
- Flow Estimation: ID is useful for flow area and hydraulic review.
- Transport and Lifting: Large pipe sections require accurate weight data for safe handling.
- Material Comparison: Engineers often compare XS pipe with STD, Sch 40, Sch 60, or Sch 80 depending on design needs.
Typical Applications of 46 Inch Schedule XS Pipe
This pipe size may be used in:
- Industrial process piping
- Water transmission systems
- Power and utility projects
- Large plant piping works
- Infrastructure construction
- Fabricated spool and custom steel projects
Engineering Notes
NPS means Nominal Pipe Size, while DN means Diameter Nominal. Although this pipe is referred to as 46 inch, the actual outside diameter is 1168 mm according to the standard. The inside diameter changes with the pipe schedule because wall thickness changes from one schedule to another.
In other words, if you compare the same 46 inch pipe in a different schedule, the OD usually stays the same, but the ID, wall thickness, and weight will change.
Reference
The dimension data on this page is based on ANSI/ASME B36.10, which is widely used for carbon steel pipe dimensions in industrial applications.