This reference page explains the dimensional data for Schedule 5S Pipe 1 1/2 Inch (DN40), including outside diameter, inside diameter, wall thickness, and listed weight. Use the table for quick checking, then review the explanatory notes before selecting the pipe for a project.
For related design work, compare this entry with other stainless steel pipe dimensions, review pipe schedules, and check connected pipe fittings and flanges using the same nominal size designations. The downloadable DWG resource can also support preliminary drafting and layout coordination.
Schedule 5S Pipe 1 1/2 Inch (DN40 mm) is a stainless steel pipe size commonly used in industrial piping systems where corrosion resistance and lighter wall thickness are required. This pipe size is typically referenced under ANSI/ASME B36.19, which is the standard used for stainless steel pipe dimensions.
For this size, the pipe has an outside diameter (OD) of 48.3 mm, an inside diameter (ID) of 45 mm, and a wall thickness of 1.65 mm. The listed pipe weight is 1.9 kg/m, while the weight including water is 3.48 kg/m.
Schedule 5S Pipe 1 1/2 Inch (DN40 mm) Dimension Table
| Pipe Size | NPS | DN | Outside Diameter (OD) | Inside Diameter (ID) | Wall Thickness | Weight |
|---|---|---|---|---|---|---|
| Schedule 5S Pipe | 1 1/2 Inch | DN40 | 48.3 mm | 45 mm | 1.65 mm | 1.9 kg/m |
What Is Schedule 5S Pipe?
Schedule 5S is a thin-wall stainless steel pipe schedule listed in ASME B36.19. The āSā designation is commonly used for stainless steel pipe schedules. Compared with heavier schedules, Schedule 5S provides a lighter wall thickness and lower pipe weight, which can help reduce handling effort, support load, and fabrication requirements in suitable applications.
However, pipe schedule selection should always be reviewed against design pressure, temperature, corrosion allowance, project code, and service conditions before final use.
1 1/2 Inch Schedule 5S Pipe Data
- Standard: ANSI/ASME B36.19
- Pipe Type: Stainless Steel Pipe
- NPS: 1 1/2 Inch
- DN: DN40
- OD: 48.3 mm
- ID: 45 mm
- Wall Thickness: 1.65 mm
- Pipe Weight: 1.9 kg/m
- Weight Including Water: 3.48 kg/m
Common Uses of 1 1/2 Inch Schedule 5S Pipe
1 1/2 inch Schedule 5S stainless steel pipe may be used in applications where corrosion resistance, lighter wall thickness, and good flow capacity are needed. Typical uses may include:
- Water treatment and utility piping systems
- Industrial stainless steel process lines
- Low-pressure transfer piping
- Food and beverage production systems
- Chemical and general fabrication projects
Why DN40 Pipe Dimensions Matter
Many users search for DN40 pipe dimensions to verify piping layout, support spacing, fabrication requirements, transport limits, and compatibility with fittings or connected equipment. For this pipe size, accurate dimensions are important for spool coordination, structural checks, and installation planning.
Knowing the correct 1 1/2 inch Schedule 5S pipe dimensions also helps engineers, designers, estimators, buyers, and students compare this size with other schedules when reviewing wall thickness, internal flow area, and total pipe weight.
NPS 1 1/2 and DN40 Explained
NPS stands for Nominal Pipe Size in inches, while DN stands for Diameter Nominal in metric designation. For this pipe size:
- NPS 1 1/2 = inch-based nominal pipe size
- DN40 = metric nominal designation
Although DN is shown in metric form, the actual outside diameter should always be checked from the dimensional standard. For this size, the OD is 48.3 mm.
Reference for Schedule 5S Pipe 1 1/2 Inch
This page provides a quick dimensional reference for engineers, piping designers, students, fabricators, and procurement teams looking for Schedule 5S Pipe 1 1/2 Inch (DN40 mm) data in a clear format.
Reference Standard: ANSI/ASME B36.19 stainless steel pipe dimensions.
How to Read This Schedule 5S Pipe Reference
The dimensional table separates nominal identification from physical dimensions. NPS 1 1/2 Inch and DN40 identify the nominal pipe size, while OD, ID, and wall thickness describe the actual section used for layout and fabrication checks.
Outside diameter is commonly used when checking clearances, supports, clamps, sleeves, and connections. Inside diameter is relevant to flow-path review and internal access. Wall thickness helps distinguish this thin-wall schedule from other stainless steel pipe options, but it should not be treated as a pressure-design approval by itself.
Weight and Water-Filled Weight
The listed pipe weight describes the pipe itself. The separate value for weight including water represents the combined line-item weight used for preliminary support, handling, and installation discussions. Actual project calculations should also account for the selected material, contents, insulation, valves, fittings, and other attached components where applicable.
Using the DWG File
The attached DWG file can help users begin a piping layout, create a spool reference, or coordinate the pipe envelope with fittings and equipment. Before issuing a drawing for fabrication, verify the selected standard, connection details, tolerances, material requirements, and project-specific drafting conventions.
Selection and Design Checks
Schedule selection is not based on dimensions alone. Confirm the design pressure, temperature, corrosion allowance, service fluid, joining method, applicable project code, and procurement requirements. The dimensional data on this page is a reference and should be checked against the governing project documents before final design or purchase.
For broader comparison, an internal pipe dimension chart can help review adjacent nominal sizes and schedules, while a stainless steel pipe weight guide can support estimating and handling studies. Use those resources alongside the authoritative local tables rather than substituting one size or schedule for another.
Frequently Asked Questions
What is the OD of Schedule 5S Pipe 1 1/2 Inch?
The listed outside diameter is 48.3 mm.
What are the ID and wall thickness?
The listed inside diameter is 45 mm, and the wall thickness is 1.65 mm.
What is the pipe weight?
The listed pipe weight is 1.9 kg/m. The separate listed weight including water is 3.48 kg/m.
Are NPS 1 1/2 and DN40 the same designation?
They are the inch-based and metric nominal designations shown for this pipe size. The actual outside diameter should still be checked from the dimensional data rather than inferred from the nominal label.
What standard is referenced for this pipe?
The page references ANSI/ASME B36.19 for stainless steel pipe dimensions. Confirm the required edition, material specification, and project requirements in the governing documentation.
Can this pipe be used for a pressure service?
The dimensional reference alone does not establish suitability for a particular pressure or temperature service. Selection requires a review of design conditions, corrosion allowance, code requirements, and the complete piping specification.