Schedule 5S Pipe 22 Inch (DN550 mm) is a stainless steel pipe size used in large piping systems where corrosion resistance and lighter wall thickness are important. This pipe size is commonly referenced under ANSI/ASME B36.19, which is the standard typically used for stainless steel pipe dimensions.
For this size, the pipe has an outside diameter (OD) of 559 mm, an inside diameter (ID) of 549.44 mm, and a wall thickness of 4.78 mm. The listed pipe weight is 65.33 kg/m, while the weight including water is 302.3 kg/m.
Schedule 5S Pipe 22 Inch (DN550 mm) Dimension Table
| Pipe Size | NPS | DN | Outside Diameter (OD) | Inside Diameter (ID) | Wall Thickness | Weight |
|---|---|---|---|---|---|---|
| Schedule 5S Pipe | 22 Inch | DN550 | 559 mm | 549.44 mm | 4.78 mm | 65.33 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 generally used for stainless steel pipe schedules. Compared with heavier pipe schedules, Schedule 5S provides lower wall thickness and lighter pipe weight, which may help reduce fabrication load, support demand, and installation effort in suitable service conditions.
However, pipe schedule selection should always be checked against project requirements such as design pressure, temperature, corrosion allowance, code compliance, and service environment.
22 Inch Schedule 5S Pipe Data
- Standard: ANSI/ASME B36.19
- Pipe Type: Stainless Steel Pipe
- NPS: 22 Inch
- DN: DN550
- OD: 559 mm
- ID: 549.44 mm
- Wall Thickness: 4.78 mm
- Pipe Weight: 65.33 kg/m
- Weight Including Water: 302.3 kg/m
Common Uses of 22 Inch Schedule 5S Pipe
22 inch Schedule 5S stainless steel pipe may be used in systems where a large internal flow area and corrosion-resistant material are required. Typical applications may include:
- Water treatment and utility piping
- Industrial stainless steel process systems
- Low-pressure transfer lines
- Food and beverage production piping
- Chemical and general fabrication projects
Why DN550 Pipe Dimensions Matter
Many users search for DN550 pipe dimensions to verify piping layout, support spacing, transportation limits, fabrication details, and compatibility with fittings or connected equipment. For large-diameter pipe, accurate dimensions are important for spool coordination, structural loading checks, and installation planning.
Knowing the correct 22 inch Schedule 5S pipe dimensions also helps engineers, detailers, estimators, and buyers compare this size with other schedules when reviewing wall thickness, internal flow area, and total pipe weight.
NPS 22 and DN550 Explained
NPS stands for Nominal Pipe Size in inches, while DN stands for Diameter Nominal in metric designation. For this pipe size:
- NPS 22 = inch-based nominal pipe size
- DN550 = metric nominal designation
Even though DN is shown in metric format, the actual outside diameter must still be checked from the standard table. For this size, the OD is 559 mm.
Reference for Schedule 5S Pipe 22 Inch
This page provides a quick dimensional reference for engineers, piping designers, students, fabricators, and procurement teams looking for Schedule 5S Pipe 22 Inch (DN550 mm) data in a clear format.
Reference Standard: ANSI/ASME B36.19 stainless steel pipe dimensions.