This reference provides the dimensional and weight data for 2 inch (DN50) Schedule 80 pipe, including outside diameter, inside diameter, wall thickness, and mass per unit length. Use the table for drafting, estimating, piping-layout coordination, and preliminary support or handling reviews, while confirming material and project requirements before procurement.
For related design work, compare this page with references covering pipe schedules, nominal pipe size and DN conversions, pipe fittings, and flange dimensions. Those topics help connect the straight-pipe dimensions to the components and interfaces used in a complete piping system.
Schedule 80 Pipe 2 Inch (DN50) is a heavy wall steel pipe commonly used in industrial piping systems that require higher strength and thicker pipe walls than lighter schedules. This pipe size is based on ANSI/ASME B36.10 and is widely used in process piping, utility systems, water treatment plants, and mechanical services. For this size, the standard data shows an outside diameter of 60.3 mm, an inside diameter of 49.22 mm, a wall thickness of 5.54 mm, and a pipe weight of 7.48 kg/m.
Schedule 80 Pipe 2 Inch (DN50) Dimensions
- Pipe Standard: ANSI/ASME B36.10
- Nominal Pipe Size: 2 inch
- DN Size: DN50
- Outside Diameter (OD): 60.3 mm
- Inside Diameter (ID): 49.22 mm
- Wall Thickness: 5.54 mm
- Pipe Weight: 7.48 kg/m
- Pipe Weight Including Water: 9.38 kg/m
What Is Schedule 80 Pipe?
Schedule 80 refers to a pipe wall thickness classification. For the same nominal pipe size, a Schedule 80 pipe has a thicker wall and a smaller inside diameter than lower schedule pipes. This makes it a practical choice for systems that need additional pipe strength, durability, and long-term service performance.
Why 2 Inch DN50 Pipe Dimensions Matter
Knowing the exact dimensions of a 2 inch Schedule 80 pipe is important for piping design, fabrication, and installation. The outside diameter helps with flange matching, clamps, and supports. The inside diameter affects flow area and system capacity. The wall thickness is important for strength and service conditions, while the pipe weight per meter is useful for transport, lifting plans, and structural support calculations.
Common Uses of Schedule 80 Pipe 2 Inch (DN50)
This pipe size is often used in industrial and commercial piping systems such as:
- Water treatment and utility piping
- Process and plant piping systems
- Oil and gas applications
- Pump stations and mechanical services
- Heavy-duty industrial pipe networks
2 Inch Schedule 80 Pipe Data Table
| NPS | DN | OD (mm) | ID (mm) | Wall Thickness (mm) | Weight (kg/m) |
|---|---|---|---|---|---|
| 2 inch | 50 | 60.3 | 49.22 | 5.54 | 7.48 |
Additional Information for Engineers and Buyers
Before selecting this pipe size, it is also important to review the material grade, end type, design pressure, corrosion allowance, operating temperature, and project code requirements. While Schedule 80 defines the dimensional wall category, the final pipe selection should always match the actual service condition and engineering specification.
Note: NPS means nominal pipe size in inches, while DN means diameter nominal in millimeters. These are standard reference sizes used for pipe identification.
How to Read the 2 Inch DN50 Schedule 80 Data
Nominal pipe size identifies the pipe designation rather than providing a direct measurement of the outside or inside diameter. The listed outside diameter is especially useful when coordinating clamps, supports, sleeves, flanges, and connection details. The inside diameter is the more relevant reference for estimating available flow area and checking clearances through the pipe bore.
Schedule describes the wall-thickness category for a nominal pipe size. It should not be treated as a complete material or pressure rating. Actual selection also depends on the pipe material, corrosion allowance, temperature, design pressure, joining method, applicable piping code, and project specification. These factors should be checked by the responsible engineer before the pipe is released for construction.
Using the Weight Information in Design and Drafting
The listed pipe weight supports preliminary material takeoffs, transportation planning, lifting reviews, and pipe-support coordination. The separate weight including water is useful when considering an operating or filled condition. A complete support review may also need to account for fittings, valves, insulation, coatings, contents, and local support arrangements.
CAD and Related Reference Work
The downloadable DWG can support layout development and coordination for the referenced pipe size. Before using it in a fabrication or construction drawing, verify units, insertion scale, connection details, tolerances, and the project’s required representation of wall thickness. Related references for pipe CAD blocks, flange selection, and fitting dimensions can help complete the surrounding piping model.
Frequently Asked Questions
What does Schedule 80 mean for this pipe?
Schedule 80 identifies a thicker-wall classification for the nominal pipe size. Compared with a lighter schedule for the same nominal size, it generally provides a smaller bore and a greater wall thickness. The schedule alone does not establish the pipe material, allowable pressure, or suitability for a particular service.
Are 2 inch and DN50 the same physical measurement?
They are designation systems used to identify the same nominal pipe size in this reference. The actual outside diameter and inside diameter must be taken from the applicable dimensional data rather than inferred from the nominal labels.
Which dimension should be used for pipe supports?
The outside diameter is normally the key dimensional reference for clamps, supports, sleeves, and external clearances. Confirm the support manufacturer’s requirements and account for coatings, insulation, or other external layers where applicable.
Which dimension affects flow calculations?
The inside diameter determines the available bore and is therefore important for flow-area and hydraulic calculations. Final calculations should also use the project’s fluid properties, operating conditions, roughness assumptions, and applicable engineering method.
Does the listed pipe weight include the contents?
The reference separates the pipe weight from the pipe weight including water. Use the appropriate condition for the review, and add any other permanent or operating loads required by the design basis.
Can this DWG be used directly for fabrication?
The DWG is a reference resource for layout and coordination. Check its units, scale, connection requirements, tolerances, material specification, and project drawing standards before using it for fabrication or construction.