This reference provides the dimensional data for Schedule 5S Pipe 3 Inch (DN80), including outside diameter, inside diameter, wall thickness, and listed weight. Use the table for quick drafting, estimating, fabrication, and procurement checks, then review the application-specific design requirements before selecting the pipe for service.
For related work, connect this page to the site’s stainless steel pipe dimensions, pipe schedule comparison, NPS and DN terminology, pipe fitting dimensions, and CAD/DWG pipe resources pages. These references help users move from a dimensional check to layout coordination and component selection.
Schedule 5S Pipe 3 Inch (DN80 mm) is a stainless steel pipe size commonly used in industrial piping systems where corrosion resistance and lighter wall thickness are required. This pipe size is typically referenced under ANSI/ASME B36.19, which is the standard used for stainless steel pipe dimensions.
For this size, the pipe has an outside diameter (OD) of 88.9 mm, an inside diameter (ID) of 84.68 mm, and a wall thickness of 2.11 mm. The listed pipe weight is 4.52 kg/m, while the weight including water is 10.14 kg/m.
Schedule 5S Pipe 3 Inch (DN80 mm) Dimension Table
| Pipe Size | NPS | DN | Outside Diameter (OD) | Inside Diameter (ID) | Wall Thickness | Weight |
|---|---|---|---|---|---|---|
| Schedule 5S Pipe | 3 Inch | DN80 | 88.9 mm | 84.68 mm | 2.11 mm | 4.52 kg/m |
What Is Schedule 5S Pipe?
Schedule 5S is a thin-wall stainless steel pipe schedule listed in ASME B36.19. The “S” designation is commonly used for stainless steel pipe schedules. Compared with heavier schedules, Schedule 5S provides a lighter wall thickness and lower pipe weight, which can help reduce handling effort, support load, and fabrication requirements in suitable applications.
However, pipe schedule selection should always be reviewed against design pressure, temperature, corrosion allowance, project code, and service conditions before final use.
3 Inch Schedule 5S Pipe Data
- Standard: ANSI/ASME B36.19
- Pipe Type: Stainless Steel Pipe
- NPS: 3 Inch
- DN: DN80
- OD: 88.9 mm
- ID: 84.68 mm
- Wall Thickness: 2.11 mm
- Pipe Weight: 4.52 kg/m
- Weight Including Water: 10.14 kg/m
Common Uses of 3 Inch Schedule 5S Pipe
3 inch Schedule 5S stainless steel pipe may be used in applications where corrosion resistance, lighter wall thickness, and good flow capacity are needed. Typical uses may include:
- Water treatment and utility piping systems
- Industrial stainless steel process lines
- Low-pressure transfer piping
- Food and beverage production systems
- Chemical and general fabrication projects
Why DN80 Pipe Dimensions Matter
Many users search for DN80 pipe dimensions to verify piping layout, support spacing, fabrication requirements, transport limits, and compatibility with fittings or connected equipment. For this pipe size, accurate dimensions are important for spool coordination, structural checks, and installation planning.
Knowing the correct 3 inch Schedule 5S pipe dimensions also helps engineers, designers, estimators, buyers, and students compare this size with other schedules when reviewing wall thickness, internal flow area, and total pipe weight.
NPS 3 and DN80 Explained
NPS stands for Nominal Pipe Size in inches, while DN stands for Diameter Nominal in metric designation. For this pipe size:
- NPS 3 = inch-based nominal pipe size
- DN80 = metric nominal designation
Although DN is shown in metric form, the actual outside diameter should always be checked from the dimensional standard. For this size, the OD is 88.9 mm.
Reference for Schedule 5S Pipe 3 Inch
This page provides a quick dimensional reference for engineers, piping designers, students, fabricators, and procurement teams looking for Schedule 5S Pipe 3 Inch (DN80 mm) data in a clear format.
Reference Standard: ANSI/ASME B36.19 stainless steel pipe dimensions.
How to Read the Schedule 5S Pipe Data
The listed outside diameter (OD) is the external measurement used for layout coordination, clamp and support planning, and connection checks. The inside diameter (ID) describes the internal opening, while wall thickness describes the material between the two pipe surfaces. These dimensions should be kept distinct when checking clearances, flow passages, and connections.
The listed pipe weight refers to the pipe itself. The separate weight including water is a service-load reference that includes the water contents identified in the source data. It should not be treated as a complete operating load for every piping system, because actual design checks may also involve insulation, valves, fittings, supports, test contents, and other project-specific items.
Practical Checks Before Using the Dimension
- Confirm that the selected material specification and corrosion requirements match the project documents.
- Check the pipe’s OD against fittings, flanges, connected equipment, supports, and layout clearances.
- Use the ID and wall thickness consistently when reviewing flow space, fabrication details, and connection geometry.
- Review pressure, temperature, corrosion allowance, code requirements, and service conditions before approving the schedule for a design.
- Use the downloadable DWG as a drafting aid, while verifying the drawing against the project’s controlled specifications and dimensional references.
For broader coordination, this page can be linked from references covering stainless steel pipe schedules, pipe flange dimensions, fitting takeoff dimensions, and piping support design considerations. Those links give readers a clear path from nominal size terminology to detailed piping layout work without replacing the authoritative local dimension table.
Schedule 5S Pipe Selection Context
Schedule 5S identifies a stainless steel pipe schedule with a relatively light wall within the source’s dimensional reference. That description alone does not establish whether the pipe is acceptable for a particular pressure boundary or process service. Final selection remains dependent on the governing design basis, applicable code, material requirements, and operating conditions.
Frequently Asked Questions
What are the dimensions of 3 Inch Schedule 5S Pipe?
The source lists an outside diameter of 88.9 mm, an inside diameter of 84.68 mm, and a wall thickness of 2.11 mm.
What is the weight of Schedule 5S Pipe 3 Inch?
The listed pipe weight is 4.52 kg/m. The source separately lists 10.14 kg/m for the weight including water.
What is the difference between NPS 3 and DN80?
NPS 3 is the inch-based nominal pipe designation, while DN80 is the metric nominal designation for the same referenced pipe size. The nominal labels do not replace checking the actual outside diameter.
Which standard is referenced for this pipe size?
The page references ANSI/ASME B36.19 for stainless steel pipe dimensions. Project specifications and applicable design requirements should also be reviewed before fabrication or installation.
Can the listed Schedule 5S pipe be used for any application?
No. The dimensional reference does not by itself confirm suitability for a specific service. Pressure, temperature, corrosion allowance, project code, material requirements, and operating conditions must be reviewed by the responsible engineering team.