Use this page as a quick reference when checking Schedule 10S pipe 1/4 inch (DN8) for piping layouts, material takeoffs, fabrication drawings, and engineering calculations. The existing table provides the dimensional and weight data; the notes below explain how to interpret that information and where it fits within common pipe-reference workflows.
Schedule 10S pipe 1/4 inch (DN8) is a small-size stainless steel pipe 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 1/4 Schedule 10S pipe based on ASME B36.19.
1/4 Inch Schedule 10S Pipe Dimensions
- Nominal Pipe Size (NPS): 1/4 inch
- Diameter Nominal (DN): DN8
- Outside Diameter (OD): 13.7 mm
- Wall Thickness: 1.65 mm
- Inside Diameter (ID): 10.4 mm
- Pipe Weight: 0.49 kg/m
- Pipe Weight Filled With Water: 0.57 kg/m
- Reference Standard: ASME B36.19
- Pipe Type: Stainless Steel Pipe
Schedule 10S Pipe 1/4 Inch Data Table
| Pipe Size | DN | OD (mm) | Wall Thickness (mm) | ID (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| 1/4 inch | 8 | 13.7 | 1.65 | 10.4 | 0.49 |
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 “S” designation is commonly used for stainless steel pipe schedules.
Typical Uses of 1/4 Inch Schedule 10S Pipe
NPS 1/4 Schedule 10S pipe is commonly used in stainless steel piping systems for industrial plants, utility services, food and beverage facilities, small-bore service lines, 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 stainless steel piping systems, accurate weight data helps improve material handling, support spacing, and total project cost estimation.
1/4 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 1/4 inch Schedule 10S pipe?
The outside diameter is 13.7 mm.
What is the wall thickness of DN8 Schedule 10S pipe?
The wall thickness is 1.65 mm.
What is the inside diameter of NPS 1/4 Schedule 10S pipe?
The inside diameter is 10.4 mm.
How much does 1/4 inch Schedule 10S pipe weigh?
The approximate weight is 0.49 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 1/4 inch (DN8) has an outside diameter of 13.7 mm, wall thickness of 1.65 mm, inside diameter of 10.4 mm, and a weight of 0.49 kg/m. It is a useful reference for piping design, drafting, estimating, and stainless steel fabrication work.
How to Read the Schedule 10S Pipe Data
Pipe size names are nominal designations rather than direct measurements of the pipe’s outside or inside diameter. For drafting and coordination, the outside diameter is especially important because it affects clearances, connection geometry, clamps, supports, and the placement of nearby components.
Wall thickness is used with the outside diameter to establish the listed inside diameter. The inside diameter is the more relevant dimensional reference for many flow-area, instrumentation, and small-bore connection checks, although any final design calculation must also consider the applicable material, service, joining method, and project requirements.
Schedule, Material, and Standard Context
The “10S” designation identifies a stainless steel schedule used with the dimensional system referenced on this page. It should not be treated as a pressure rating or as a substitute for a complete piping specification. Pressure capability and suitability depend on factors such as material grade, temperature, corrosion allowance, manufacturing requirements, and the governing design code.
For a broader comparison, see the site’s related references on pipe schedules, NPS and DN terminology, and stainless steel pipe dimensions. These topics help explain why nominal size, outside diameter, wall thickness, and inside diameter should be checked separately during design or drafting.
Using the Weight Information
The listed mass per unit length can support preliminary material estimates, handling reviews, support calculations, and drawing notes. The water-filled value is useful when considering operating or test conditions, but project calculations should confirm the actual contents, insulation, valves, fittings, supports, and other attached loads.
When preparing a fabrication or CAD reference, coordinate this pipe data with the applicable pipe fittings, flanges, small-bore piping details, and DWG resources. Matching connection dimensions and centerlines prevents errors that can occur when nominal labels are used without checking the dimensional table.
Additional Questions About 1/4 Inch Schedule 10S Pipe
Is NPS 1/4 the same as an actual quarter-inch outside diameter?
No. NPS is a nominal pipe-size designation. The actual outside diameter is the dimension to use when checking layout clearances, supports, and connections.
Does Schedule 10S identify the stainless steel grade?
No. The schedule identifies a dimensional wall-thickness designation. The stainless steel grade must be specified separately and verified against the project material requirements.
Can the listed pipe weight be used as the complete line load?
No. It represents the pipe reference weight shown in the source data. A complete line-load assessment may also need contents, insulation, coatings, fittings, valves, supports, and temporary test conditions.
Why should the pipe data be checked with fitting and flange references?
Pipe dimensions alone do not define the complete connection geometry. Fittings, flanges, threaded or welded details, and CAD representations must be coordinated before fabrication or installation.
Is this page a substitute for pressure-design verification?
No. It is a dimensional and reference resource. Pressure, temperature, corrosion, joining, and code compliance checks require the applicable project specifications and engineering review.