This reference provides a quick way to review the dimensional and weight data for 2 inch Schedule STD pipe, also identified as NPS 2 and DN50. Use the table below when checking piping layouts, material takeoffs, fabrication details, support coordination, and procurement information.
For related design work, compare this page with references covering pipe schedules, NPS and DN terminology, pipe fittings, and flange dimensions. Those topics help confirm how the pipe interfaces with connected components and how dimensional data is used in drawings and specifications.
Schedule STD Pipe 2 Inch (DN50) is a steel pipe size commonly used in industrial and utility piping systems where standard dimensions, structural reliability, and dependable flow capacity are important. Based on the current page data under ANSI/ASME B36.10, this pipe size has an outside diameter of 60.3 mm, an inside diameter of 52.48 mm, a wall thickness of 3.91 mm, and a pipe weight of 5.44 kg/m.
2 Inch Schedule STD Pipe Dimensions
The following values are listed for NPS 2 Schedule STD pipe, which corresponds to DN50 in metric designation.
- Pipe Size: NPS 2 Inch
- DN Size: DN50
- Outside Diameter (OD): 60.3 mm
- Inside Diameter (ID): 52.48 mm
- Wall Thickness: 3.91 mm
- Pipe Weight: 5.44 kg/m
- Pipe Weight Including Water: 7.6 kg/m
- Reference Standard: ANSI/ASME B36.10
Schedule STD Pipe 2 Inch (DN50) Data Table
| Pipe Schedule | NPS | DN | OD (mm) | ID (mm) | Wall Thickness (mm) | Weight (kg/m) |
|---|---|---|---|---|---|---|
| STD | 2 Inch | 50 | 60.3 | 52.48 | 3.91 | 5.44 |
What Is Schedule STD Pipe?
Schedule STD means Standard Weight in the IPS pipe system and is commonly referenced for carbon steel and steel pipe dimensions under ASME B36.10. In practical piping work, Schedule STD is used as a standard wall thickness designation for many nominal pipe sizes. It helps engineers, fabricators, and buyers confirm dimensional compatibility, estimate weight, and coordinate with fittings, flanges, supports, and structural loads.
Common Uses of 2 Inch Schedule STD Pipe
2 inch Schedule STD pipe is commonly used in industrial and utility piping systems where good flow capacity and standard steel pipe dimensions are required. This size is often selected for water, cooling, transmission, and plant services where reliable dimensional data is important for design, fabrication, and construction.
- Water transmission lines for plant and utility service
- Cooling water systems in industrial facilities
- Stormwater and drainage piping in infrastructure projects
- Industrial utility piping for bulk fluid transport
- Pipeline headers and manifolds in process plants
- Pump suction and discharge lines where standard pipe dimensions are needed
- Municipal and public works projects requiring steel pipe sizes
- Replacement and upgrade projects where standard pipe dimensions are required
In practical engineering work, this pipe size may be reviewed when checking flow capacity, support loading, transport weight, handling requirements, and installation planning. Final pipe selection should always be verified against project pressure, temperature, fluid type, corrosion allowance, and material specifications.
Why OD, ID, Thickness, and Weight Matter
Exact OD, ID, wall thickness, and weight values are important for support design, material take-off, transport planning, lifting studies, welding preparation, and installation work. For a pipe size such as 2 inch DN50, accurate weight data is useful for support design, material planning, and installation review. Inside diameter is also important for flow calculations and hydraulic capacity review.
NPS 2 and DN50 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 2 and DN50, which is the standard naming format widely used in piping drawings, specifications, and procurement documents.
Conclusion
Schedule STD Pipe 2 Inch (DN50) is listed on the current page with 60.3 mm OD, 52.48 mm ID, 3.91 mm wall thickness, and 5.44 kg/m weight. It is a useful steel pipe reference for engineers, designers, and buyers who need standard dimensional and weight data for piping systems and project coordination.
How to Use This Pipe Reference
The existing data separates the pipe’s outside diameter, inside diameter, wall thickness, and mass per unit length. Each value serves a different purpose: outside diameter helps coordinate fittings and supports, inside diameter is used in flow and hydraulic reviews, wall thickness supports fabrication and dimensional checks, and pipe weight assists with material planning and support-load reviews.
Schedule STD is a standard-weight designation rather than a complete service specification. The schedule designation should therefore be reviewed together with the project material specification, operating conditions, corrosion requirements, joining method, and applicable design checks. Dimensional compatibility alone does not establish whether a pipe is appropriate for a particular service.
Coordination With Drawings and Components
When this pipe is shown on a piping drawing or CAD detail, check the nominal designation as well as the dimensional table. The NPS and DN labels identify the nominal size, while the OD, ID, and wall thickness describe the physical reference data used for coordination. Connected fittings, flanges, valves, gaskets, supports, and weld details should be checked against their own applicable dimensional requirements.
The downloadable DWG can support drafting and layout work, but it should be reviewed against the project specification and the authoritative dimensional data before fabrication or construction. Related PipeSTD references for steel pipe dimensions, pipe fittings, flanges, and CAD/DWG resources can provide useful next steps when developing a complete piping detail.
Frequently Asked Questions
What does 2 inch Schedule STD pipe mean?
It identifies a nominal pipe size of NPS 2 with the Schedule STD, or Standard Weight, designation. The same pipe is identified as DN50 in the metric nominal designation.
What are the listed dimensions for this pipe?
The page lists an outside diameter of 60.3 mm, an inside diameter of 52.48 mm, and a wall thickness of 3.91 mm. Refer to the table for the complete local reference record.
What is the listed weight of 2 inch Schedule STD pipe?
The listed pipe weight is 5.44 kg/m. The page also provides a separate value for pipe weight including water, which should be used only in the context intended by the project calculation or planning activity.
Is Schedule STD a pressure rating?
No. Schedule STD identifies a dimensional wall designation. Pressure and service suitability require additional review of the material, temperature, fluid, design conditions, corrosion allowance, joining details, and project requirements.
Why are both NPS 2 and DN50 shown?
NPS is the nominal pipe size designation used with inch-based piping terminology, while DN is the metric nominal designation. Both labels help coordinate specifications, drawings, procurement documents, and connected piping components.