This reference provides the dimensional and weight data for 4 inch Schedule 80S stainless steel pipe, also identified as NPS 4 and DN100. Use the table below when checking piping layouts, material take-offs, fabrication details, support loads, and procurement documents.
The page also includes a downloadable DWG resource for drafting and design coordination. Before using the data for final selection, compare the pipe dimensions with the applicable project material specification, pressure and temperature requirements, fluid service, and connection details.
Schedule 80S Pipe 4 Inch (DN100) is a stainless steel pipe size commonly used in industrial piping systems where corrosion resistance, dimensional consistency, and dependable wall thickness are important. Based on the current page data under ANSI/ASME B36.19, this pipe size has an outside diameter of 114.3 mm, an inside diameter of 97.18 mm, a wall thickness of 8.56 mm, and a pipe weight of 22.32 kg/m.
4 Inch Schedule 80S Pipe Dimensions
The following values are listed for NPS 4 Schedule 80S pipe, which corresponds to DN100 in metric designation.
- Pipe Size: NPS 4 Inch
- DN Size: DN100
- Outside Diameter (OD): 114.3 mm
- Inside Diameter (ID): 97.18 mm
- Wall Thickness: 8.56 mm
- Pipe Weight: 22.32 kg/m
- Pipe Weight Including Water: 29.73 kg/m
- Reference Standard: ANSI/ASME B36.19
Schedule 80S Pipe 4 Inch (DN100) Data Table
| Pipe Schedule | NPS | DN | OD (mm) | ID (mm) | Wall Thickness (mm) | Weight (kg/m) |
|---|---|---|---|---|---|---|
| 80S | 4 Inch | 100 | 114.3 | 97.18 | 8.56 | 22.32 |
What Is Schedule 80S Pipe?
Schedule 80S is a stainless steel pipe schedule designation commonly used under ASME B36.19. In piping design and fabrication, the schedule identifies the wall thickness series for a given nominal pipe size. This helps engineers, buyers, and fabricators confirm dimensional compatibility, estimate pipe weight, and coordinate with fittings, flanges, and supports.
Common Uses of 4 Inch Schedule 80S Pipe
4 inch Schedule 80S pipe is commonly used in stainless steel piping systems that require good corrosion resistance, dependable wall thickness, and reliable flow capacity. This size is often selected for industrial projects where standard dimensions are needed for design, fabrication, procurement, and installation work.
- Process piping systems in chemical and industrial plants
- Water transmission lines for industrial and utility service
- Cooling water and utility piping in plant facilities
- Marine and offshore piping where stainless steel is preferred
- Food and beverage plants requiring corrosion-resistant piping materials
- Pharmaceutical facilities using stainless steel process lines
- Pump suction and discharge piping for process and utility systems
- Pipeline modification and replacement work where standard pipe dimensions are required
In practical engineering work, this pipe size may be checked when reviewing flow area, piping layout, support loading, transport weight, and installation requirements. Final pipe selection should always be verified against project pressure, temperature, fluid type, and material specifications.
Why OD, ID, Thickness, and Weight Matter
Exact OD, ID, wall thickness, and weight values are important for pipe support design, material take-off, transport planning, welding preparation, and installation work. Weight data is also useful for lifting calculations and total piping load estimates, while inside diameter affects flow calculations and system capacity review.
NPS 4 and DN100 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 4 and DN100, which is the standard naming format widely used in piping drawings, isometrics, and procurement specifications.
Conclusion
Schedule 80S Pipe 4 Inch (DN100) is listed on the current page with 114.3 mm OD, 97.18 mm ID, 8.56 mm wall thickness, and 22.32 kg/m weight. It is a useful stainless steel pipe reference for piping engineers, designers, and buyers who need standard dimensional and weight data for project planning and material selection.
How to Use This Pipe Reference
The dimensional table is useful when coordinating pipe with fittings, flanges, valves, supports, and equipment connections. The outside diameter is commonly needed for layout clearances and connection coordination, while the inside diameter supports flow-area reviews. Wall thickness and pipe weight are relevant to fabrication, handling, support loading, and material estimates.
Check Schedule, Size, and Material Together
NPS 4 and DN100 are nominal size designations, while 80S identifies the stainless steel wall-thickness series listed on this page. These labels should be reviewed together on drawings, purchase descriptions, and fabrication documents so that the intended pipe is not confused with another schedule or material specification.
Use the DWG for Drafting Coordination
The downloadable DWG can support preliminary CAD work, piping layout review, and dimensional coordination. Treat the drawing as a reference resource and confirm the selected pipe, fittings, flange facing, weld details, and project tolerances against the approved engineering documents before fabrication.
Related Reference Topics
For a broader piping review, connect this page with internal references covering pipe schedules, stainless steel pipe dimensions, fitting dimensions, flange dimensions, pipe support loads, and piping CAD/DWG resources. These related topics help readers move from a dimensional check to layout, connection, and installation coordination.
Frequently Asked Questions
What size is Schedule 80S pipe on this page?
The page covers NPS 4 pipe, corresponding to DN100. The listed dimensional values are provided in the preserved data table.
What standard is referenced for this pipe data?
The page identifies ANSI/ASME B36.19 as the reference standard for the listed Schedule 80S stainless steel pipe dimensions.
What information is included in the dimensional reference?
The reference includes nominal size, DN designation, outside diameter, inside diameter, wall thickness, pipe weight, and pipe weight including water.
Can the listed weight be used for support design?
The listed weight can support preliminary load and material-estimate reviews. Final support design should also account for the complete piping arrangement, contents, insulation, valves, fittings, operating conditions, and project-specific engineering requirements.
Does the Schedule 80S designation alone confirm suitability?
No. The schedule identifies a dimensional wall-thickness series, but final selection must also be checked against the specified material, pressure, temperature, fluid service, joining method, and applicable project requirements.
Is a CAD file available for this pipe reference?
Yes. A DWG download is provided with the page for drafting and layout coordination. Verify the downloaded reference against approved project drawings before using it for fabrication.