This reference page covers Schedule 10S pipe 16 inch (DN400) for stainless steel piping design, drafting, fabrication, estimating, and equipment-layout work. Use the dimension list and data table as the primary reference for the outside diameter, wall thickness, inside diameter, and listed pipe weight.
For practical design work, distinguish the nominal designation from the measured geometry: NPS 16 and DN400 identify the pipe size, while the outside diameter, wall thickness, and inside diameter describe the physical section. The downloadable DWG can support drafting workflows, but the project specification and verified manufacturer information should control procurement and fabrication.
Schedule 10S pipe 16 inch (DN400) is a large-diameter stainless steel pipe size commonly used in piping design, fabrication, drafting, and engineering reference work. This page provides the standard dimensions, wall thickness, inside diameter, and weight per meter for NPS 16 Schedule 10S pipe based on ASME B36.19.
16 Inch Schedule 10S Pipe Dimensions
- Nominal Pipe Size (NPS): 16 inch
- Diameter Nominal (DN): DN400
- Outside Diameter (OD): 406.4 mm
- Wall Thickness: 4.78 mm
- Inside Diameter (ID): 396.84 mm
- Pipe Weight: 47.34 kg/m
- Pipe Weight Filled With Water: 170.96 kg/m
- Reference Standard: ASME B36.19
- Pipe Type: Stainless Steel Pipe
Schedule 10S Pipe 16 Inch Data Table
| Pipe Size | DN | OD (mm) | Wall Thickness (mm) | ID (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| 16 inch | 400 | 406.4 | 4.78 | 396.84 | 47.34 |
What Does Schedule 10S Mean?
Schedule 10S is a stainless steel pipe schedule covered by ASME B36.19. For the same nominal pipe size, the outside diameter remains fixed while the wall thickness changes with the schedule. The āSā designation is commonly used for stainless steel pipe schedules.
Typical Uses of 16 Inch Schedule 10S Pipe
NPS 16 Schedule 10S pipe is commonly referenced in stainless steel piping systems used in industrial plants, utility lines, water-related systems, food and process facilities, and fabrication work where corrosion resistance and dimensional accuracy are important.
Why Pipe Weight Matters
Pipe weight per meter is useful for transport planning, lifting studies, support design, structural loading, fabrication estimates, and installation planning. In large-diameter stainless steel piping systems, total line weight can significantly affect handling and support requirements.
16 Inch Schedule 10S Pipe Calculation Notes
The listed weight is based on standard stainless steel pipe dimensions using the outside diameter and wall thickness of the pipe. Actual product weight may vary slightly depending on manufacturing tolerance, material grade, and supplier standard.
Frequently Asked Questions
What is the outside diameter of 16 inch Schedule 10S pipe?
The outside diameter is 406.4 mm.
What is the wall thickness of DN400 Schedule 10S pipe?
The wall thickness is 4.78 mm.
What is the inside diameter of NPS 16 Schedule 10S pipe?
The inside diameter is 396.84 mm.
How much does 16 inch Schedule 10S pipe weigh?
The approximate weight is 47.34 kg/m.
Which standard covers this pipe size?
This dimension data is based on ASME B36.19 for stainless steel pipe.
Conclusion
Schedule 10S pipe 16 inch (DN400) has an outside diameter of 406.4 mm, wall thickness of 4.78 mm, inside diameter of 396.84 mm, and a weight of 47.34 kg/m. It is a useful reference for piping design, drafting, estimating, and stainless steel fabrication work.
How to Use This Schedule 10S Reference
The table is useful when checking a piping model, preparing a fabrication drawing, estimating material quantities, or comparing pipe geometry with fittings and flanges. When coordinating connected components, check the matching nominal size and the applicable stainless steel piping dimensions rather than relying on the nominal designation alone.
Nominal size, OD, and ID
A nominal pipe size is a standardized identifier, not a direct measurement of the pipe’s outside or inside diameter. The outside diameter is important for layout, clamps, supports, sleeves, and clearances. The inside diameter is relevant to flow-area checks and internal clearances. The listed inside diameter reflects the stated outside diameter and wall thickness; actual supplied pipe should be verified against its permitted manufacturing tolerances.
What the schedule designation tells you
Schedule 10S identifies a stainless steel pipe wall-thickness designation referenced to ASME B36.19. It helps establish the dimensional basis for the pipe, but it does not by itself define the material grade, corrosion allowance, allowable stress, joining method, or pressure design acceptance. Those items must be confirmed from the project specification, governing design code, and purchase documentation.
Using the weight information
The listed pipe weight per meter can support preliminary material takeoffs, transport planning, lifting reviews, pipe-rack loading studies, and support coordination. For a complete installed-line assessment, also consider the effects of fittings, flanges, valves, insulation, fluid contents, supports, and site-specific design conditions. The water-filled value shown in the source table should not be treated as a universal operating-load case.
Related reference topics
This page provides useful context for related pipe dimensions, pipe schedules, stainless steel pipe, flange dimensions, pipe fittings, pipe support design, and DWG piping references. These are strong internal-link targets for readers moving from dimensional lookup to layout, connection, and drafting guidance.
Engineering and Drafting Checks
- Confirm that the project specification calls for stainless steel pipe dimensions covered by the cited reference.
- Use the stated outside diameter when checking clearances, supports, sleeves, and connection geometry.
- Verify wall thickness and material grade against procurement documents before fabrication or pressure design.
- Account separately for fluid, insulation, fittings, valves, and other attached components in support and structural reviews.
- Open the DWG reference as a drafting aid and validate critical dimensions against the approved project documentation.
Additional Questions About 16 Inch Schedule 10S Pipe
Is NPS 16 the same as DN400?
They are the nominal inch-based and metric designations used for the same pipe size reference in this page. They should be treated as identifiers, not as a statement that either designation equals the measured outside or inside diameter.
Does Schedule 10S determine pressure capacity?
No. The schedule supplies a dimensional wall-thickness reference. Pressure design also depends on factors such as material grade, design temperature, code requirements, corrosion or erosion allowances, manufacturing condition, joints, and inspection requirements.
Can the listed weight be used as the final support load?
It can serve as a pipe-weight input for preliminary coordination, but it is not automatically the final support load. The engineering review should include the contents, fittings, flanges, valves, insulation, support spacing, operating conditions, and applicable load combinations.
Can the DWG file replace approved fabrication drawings?
No. The DWG is a reference resource for drafting and layout. Critical dimensions, tolerances, connections, material requirements, and fabrication details must be checked against the approved project documents and verified supplier information.