This reference provides the dimensional and weight data for 8 inch Schedule 80S stainless steel pipe, also identified as NPS 8 and DN200. Use the values below when coordinating piping layouts, material take-offs, fabrication details, supports, and procurement documents.
For related reference work, compare this page with the site’s pipe schedule information, pipe weight resources, and stainless steel pipe dimensions. Those resources can help place this single-size entry in the context of broader piping data.
Schedule 80S Pipe 8 Inch (DN200) 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 219.1 mm, an inside diameter of 193.7 mm, a wall thickness of 12.7 mm, and a pipe weight of 64.64 kg/m.
8 Inch Schedule 80S Pipe Dimensions
The following values are listed for NPS 8 Schedule 80S pipe, which corresponds to DN200 in metric designation.
- Pipe Size: NPS 8 Inch
- DN Size: DN200
- Outside Diameter (OD): 219.1 mm
- Inside Diameter (ID): 193.7 mm
- Wall Thickness: 12.7 mm
- Pipe Weight: 64.64 kg/m
- Pipe Weight Including Water: 94.09 kg/m
- Reference Standard: ANSI/ASME B36.19
Schedule 80S Pipe 8 Inch (DN200) Data Table
| Pipe Schedule | NPS | DN | OD (mm) | ID (mm) | Wall Thickness (mm) | Weight (kg/m) |
|---|---|---|---|---|---|---|
| 80S | 8 Inch | 200 | 219.1 | 193.7 | 12.7 | 64.64 |
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 8 Inch Schedule 80S Pipe
8 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 medium-flow industrial 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 systems
- Pipeline upgrade 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 8 and DN200 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 8 and DN200, which is the standard naming format widely used in piping drawings, isometrics, and procurement specifications.
Conclusion
Schedule 80S Pipe 8 Inch (DN200) is listed on the current page with 219.1 mm OD, 193.7 mm ID, 12.7 mm wall thickness, and 64.64 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
Begin with the nominal designation when reading drawings or specifications, then use the listed outside diameter, inside diameter, wall thickness, and weight for the particular engineering check. The nominal size identifies the pipe within the piping system; it should not be treated as a direct measurement of the outside or inside diameter.
The outside diameter is especially important for layout, clamps, sleeves, branch connections, and dimensional coordination with fittings. The inside diameter is relevant to flow-area reviews and process calculations. Wall thickness affects fabrication details and the dimensional relationship between the pipe and connected components. The listed pipe weight can support material take-offs, handling plans, and preliminary support-load reviews.
Coordination With Connected Components
Pipe dimensions should be checked together with the selected pipe fittings, flanges, valves, gaskets, and supports. Dimensional compatibility alone does not confirm that a component is suitable for a particular pressure, temperature, fluid, corrosion environment, or joining method. Project specifications and qualified engineering review remain necessary before release for fabrication or installation.
Drafting and CAD Considerations
When this size is used in piping drawings or isometric layouts, keep the NPS and DN designations consistent with the project convention. The accompanying CAD and DWG reference resources may help with drafting workflows, but the model should be checked against the project material specification and the source dimensions before it is used for fabrication.
Frequently Asked Questions
What does Schedule 80S mean?
Schedule 80S is a stainless steel pipe wall-thickness designation used with the dimensional reference identified on this page. For a given nominal size, the schedule helps users distinguish the applicable wall series and coordinate pipe with connected piping components.
Is 8 inch pipe the same designation as DN200?
This page identifies the pipe as both NPS 8 and DN200. NPS is the nominal pipe size designation used in inch-based systems, while DN is the metric nominal designation.
What dimensions should be checked before ordering?
Confirm the nominal size and schedule, then review the listed outside diameter, inside diameter, wall thickness, and pipe weight. Also verify the required stainless steel material specification, ends, length, joining method, and project requirements with the supplier or responsible engineer.
Can the listed pipe weight be used for support design?
The listed weight is useful for preliminary load estimates and material planning. Support design should also account for the operating contents, insulation, valves, fittings, temporary loads, and the governing project requirements.
Where can this pipe be used?
The source content identifies process, utility, cooling-water, marine, food and beverage, pharmaceutical, pump, and replacement piping applications. Actual selection must be verified for the service fluid, operating conditions, corrosion requirements, fabrication method, and applicable project specifications.