This reference provides the dimensional and weight data needed to identify 6 inch Schedule 80S stainless steel pipe in drawings, material take-offs, procurement documents, and fabrication planning. Use the table below as the primary lookup for NPS 6 and DN150, then confirm project-specific material, pressure, temperature, and fluid requirements before selection.
For related design work, compare this entry with references covering pipe schedules, stainless steel pipe dimensions, pipe fittings, flanges, and piping isometrics. These topics help connect a pipe dimension lookup with the components and documents used in a complete piping system.
Schedule 80S Pipe 6 Inch (DN150) 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 168.3 mm, an inside diameter of 146.36 mm, a wall thickness of 10.97 mm, and a pipe weight of 42.56 kg/m.
6 Inch Schedule 80S Pipe Dimensions
The following values are listed for NPS 6 Schedule 80S pipe, which corresponds to DN150 in metric designation.
- Pipe Size: NPS 6 Inch
- DN Size: DN150
- Outside Diameter (OD): 168.3 mm
- Inside Diameter (ID): 146.36 mm
- Wall Thickness: 10.97 mm
- Pipe Weight: 42.56 kg/m
- Pipe Weight Including Water: 59.37 kg/m
- Reference Standard: ANSI/ASME B36.19
Schedule 80S Pipe 6 Inch (DN150) Data Table
| Pipe Schedule | NPS | DN | OD (mm) | ID (mm) | Wall Thickness (mm) | Weight (kg/m) |
|---|---|---|---|---|---|---|
| 80S | 6 Inch | 150 | 168.3 | 146.36 | 10.97 | 42.56 |
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 6 Inch Schedule 80S Pipe
6 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 6 and DN150 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 6 and DN150, which is the standard naming format widely used in piping drawings, isometrics, and procurement specifications.
Conclusion
Schedule 80S Pipe 6 Inch (DN150) is listed on the current page with 168.3 mm OD, 146.36 mm ID, 10.97 mm wall thickness, and 42.56 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
Start with the nominal designation shown in the page data: NPS 6 identifies the inch-based pipe size, while DN150 is the corresponding metric designation. The schedule identifies the wall-thickness series associated with that nominal size; it is not a substitute for checking the material specification or the project design conditions.
For layout and connection work, the outside diameter is important when coordinating clearances, clamps, supports, sleeves, and fitting interfaces. The inside diameter is the relevant dimensional reference for flow-area reviews, while the listed wall thickness supports fabrication checks and dimensional identification. The listed pipe weight can be used in material take-offs and preliminary handling or support-load reviews.
Pipe Weight and Installation Planning
The page separates the pipe-only weight from the value that includes water. Keeping these quantities distinct helps prevent confusion in support, lifting, transport, and operating-load discussions. A complete load review may also need to account for fittings, flanges, valves, insulation, supports, and other attached components; those items are not represented by the pipe-only value alone.
Related Piping References
This page is most useful when consulted alongside references for pipe outside diameter and wall thickness, schedule terminology, butt-weld fittings, pipe flanges, and CAD/DWG pipe details. Linking these resources helps readers move from a dimensional lookup to practical drafting, procurement, and installation coordination without treating a single table entry as a complete design decision.
Before issuing a purchase specification or fabrication drawing, verify the required stainless steel material grade, applicable product requirements, joining method, corrosion conditions, and design calculations against the governing project documents.
Frequently Asked Questions
What does 6 inch Schedule 80S pipe mean?
It identifies a stainless steel pipe with an NPS 6 nominal size and the Schedule 80S wall-thickness designation used with stainless steel pipe dimensions. The page also gives the corresponding DN designation as DN150.
Is NPS 6 the same as a 6 inch measured inside diameter?
No. NPS is a nominal pipe-size designation, not a statement that the inside diameter measures exactly 6 inches. Use the listed outside diameter, inside diameter, and wall thickness when a dimensional check is required.
What is the difference between pipe weight and pipe weight including water?
Pipe weight describes the pipe itself, while pipe weight including water represents the listed pipe-and-water condition. Use the appropriate value for the load case being reviewed and identify any additional attached components separately.
Does Schedule 80S specify the stainless steel material grade?
No. Schedule 80S identifies a dimensional wall-thickness series. The required stainless steel grade and other material requirements must be confirmed from the project specification and procurement documents.
Where is this dimensional data useful?
It can support preliminary layout, material take-offs, procurement checks, fabrication coordination, support reviews, and CAD or piping-isometric work. Final selection still requires verification against pressure, temperature, fluid, corrosion, joining, and project requirements.