Featured Articles
Boost Your Website Traffic with High Quality DA/PA 40+ Backlinks
Apr 7, 2023
In today’s competitive world, one must be knowledgeable about the latest online bus...
Oct 12, 2018
Seamless steel pipe sizes are standardized to ensure compatibility across different piping systems and industrial applications. They are typically defined by Nominal Pipe Size (NPS), Diameter Nominal (DN), outside diameter (OD), wall thickness, and pipe schedule. Understanding these dimensions is essential for selecting the right pipe for pressure, flow, and installation requirements. This guide provides a standard seamless steel pipe sizes chart, explains how pipe sizes are measured, and helps you choose the right seamless pipe size for your project.
Seamless Pipe Specification Chart
| NOMINAL PIPE SIZE | OD(mm) | NOMINAL WALL THICKNESS | |||||||||||||
| DN | NB(inch) | ASME | SCH10 | SCH20 | SCH30 | STD | SCH40 | SCH60 | XS | SCH80 | SCH100 | SCH120 | SCH140 | SCH160 | XXS |
| 15 | 1/2" | 21.3 | 2.11 | 2.41 | 2.77 | 2.77 | 3.73 | 3.73 | 4.78 | 7.47 | |||||
| 20 | 3/4" | 26.7 | 2.11 | 2.41 | 2.87 | 2.87 | 3.91 | 3.91 | 5.56 | 7.82 | |||||
| 25 | 1" | 33.4 | 2.77 | 2.9 | 3.38 | 3.38 | 4.55 | 4.55 | 6.35 | 9.09 | |||||
| 32 | 1.1/4" | 42.2 | 2.77 | 2.97 | 3.56 | 3.56 | 4.85 | 4.85 | 6.35 | 9.7 | |||||
| 40 | 1.1/2" | 48.3 | 2.77 | 3.18 | 3.68 | 3.68 | 5.08 | 5.08 | 7.14 | 10.15 | |||||
| 50 | 2" | 60.3 | 2.77 | 3.18 | 3.91 | 3.91 | 5.54 | 5.54 | 8.74 | 11.07 | |||||
| 65 | 2.1/2" | 73 | 3.05 | 4.78 | 5.16 | 5.16 | 7.01 | 7.01 | 9.53 | 14.02 | |||||
| 80 | 3" | 88.9 | 3.05 | 4.78 | 5.49 | 5.49 | 7.62 | 7.62 | 11.13 | 15.25 | |||||
| 90 | 3.1/2" | 101.6 | 3.05 | 4.78 | 5.74 | 5.74 | 8.08 | 8.08 | |||||||
| 100 | 4" | 114.3 | 3.05 | 4.78 | 6.02 | 6.02 | 8.56 | 8.56 | 11.13 | 13.49 | 17.12 | ||||
| 125 | 5" | 141.3 | 3.4 | 6.55 | 6.55 | 9.53 | 9.53 | 12.7 | 15.88 | 19.05 | |||||
| 150 | 6" | 168.3 | 3.4 | 7.11 | 7.11 | 10.97 | 10.97 | 14.27 | 18.26 | 21.95 | |||||
| 200 | 8" | 219.1 | 3.76 | 6.35 | 7.04 | 8.18 | 8.18 | 10.31 | 12.7 | 12.7 | 15.09 | 18.26 | 20.62 | 23.01 | 22.23 |
| 250 | 10" | 273 | 4.19 | 6.35 | 7.8 | 9.27 | 9.27 | 12.7 | 12.7 | 15.09 | 18.26 | 21.44 | 25.4 | 28.58 | 25.4 |
| 300 | 12" | 323.8 | 4.57 | 6.35 | 8.38 | 9.53 | 10.31 | 14.27 | 12.7 | 17.48 | 21.44 | 25.4 | 28.58 | 33.32 | 25.4 |
| 350 | 14" | 355.6 | 6.35 | 7.92 | 9.53 | 9.53 | 11.13 | 15.09 | 12.7 | 19.05 | 23.83 | 27.79 | 31.75 | 35.71 | |
| 400 | 16" | 406.4 | 6.35 | 7.92 | 9.53 | 9.53 | 12.7 | 16.66 | 12.7 | 21.44 | 26.19 | 30.96 | 36.53 | 40.19 | |
| 450 | 18" | 457.2 | 6.35 | 7.92 | 11.13 | 9.53 | 14.27 | 19.05 | 12.7 | 23.83 | 39.36 | 34.93 | 39.67 | 45.24 | |
| 500 | 20" | 508 | 6.35 | 9.53 | 12.7 | 9.53 | 15.09 | 20.62 | 12.7 | 26.19 | 32.54 | 38.1 | 44.45 | 50.01 | |
| 550 | 22" | 558.8 | 6.35 | 9.53 | 12.7 | 9.53 | 22.23 | 12.7 | 28.58 | 34.93 | 41.28 | 47.63 | 53.98 | ||
| 600 | 24" | 609.6 | 6.35 | 9.53 | 14.27 | 9.53 | 17.48 | 24.61 | 12.7 | 30.96 | 38.89 | 46.02 | 52.37 | 59.54 | |
| 650 | 26" | 660.4 | 7.92 | 12.7 | 9.53 | 12.7 | |||||||||
| 700 | 28" | 711.2 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||
| 750 | 30" | 762 | 7.92 | 12.7 | 15.88 | 9.53 | 12.7 | ||||||||
| 800 | 32" | 812.8 | 7.92 | 12.7 | 15.88 | 9.53 | 17.48 | 12.7 | |||||||
| 850 | 34" | 863.6 | 7.92 | 12.7 | 15.88 | 9.53 | 17.48 | 12.7 | |||||||
| 900 | 36" | 914.4 | 7.92 | 12.7 | 15.88 | 9.53 | 19.05 | 12.7 | |||||||
Read full guide: Seamless Steel Pipe Sizes Chart (NPS, DN, OD & Wall Thickness)
Article source: https://article-realm.com/article/Business/83800-Seamless-Steel-Pipe-Sizes-Chart.html
URL
https://www.permanentsteel.com/Permanent Steel Manufacturing Co.,Ltd have years of experience in manufacturing of carbon steel pipe, stainless steel tube, hollow section, pipe fittings.(Fluid Pipe/Boiler Tube/Fire Pipe/Line
Comments
Reviews
Most Recent Articles
- Sep 3, 2026 Global Carotid Artery Stent Market: Size, Trends, and Growth Dynamics (2026–2033) by Coherent MI
- Sep 3, 2026 Transient Ischemic Attack Market Size, Trends, and Growth Forecast 2026-2033 by Coherent MI
- Sep 3, 2026 Global Warm Autoimmune Hemolytic Anemia (WAIHA) Market Size, Trends, and Growth Analysis by Coherent MI
- Sep 3, 2026 Veterinary Vaccines Market Size, Trends, and Growth Insights 2026-2033 by coherentmarketinsights
- Sep 3, 2026 US Organic Foods Market Growth and Opportunities: Size, Trends, and Insights by coherentmarketinsights
Most Viewed Articles
- 10557 hits Market Overview: Membrane Contactor Industry 2025 by Terra Logistics
- 8533 hits Mist Sprayer Pumps Market Demands, Trends, Industry Analysis, Segmentation by 2032 by ellamrfr
- 6729 hits Next-Gen Connectivity and the Rising Demand for RF Semiconductors by James Cameroon
- 5643 hits Digital Printing Packaging Market by Technology, Application, and Region by James Cameroon
- 4682 hits Flexographic Printing Plates Market Size, Share, Report 2024-32 by ellyse perry
Popular Articles
In today’s competitive world, one must be knowledgeable about the latest online business that works effectively through seo services....
81301 Views
Walmart is being sued by a customer alleging racial discrimination. The customer who has filed a lawsuit against the retailer claims that it...
58282 Views
Are you caught in between seo companies introduced by a friend, researched by you, or advertised by a particular site? If that is...
37227 Views
Facebook, the best and most used social app in the world, has all the social features you need. However, one feature is missing. You cannot chat...
23469 Views
If you have an idea for a new product, you can start by performing a patent search. This will help you decide whether your idea could become the...
14724 Views
Moving becomes easy when you have the right moving accessories. These moving accessories help secure and protect your item by ensuring that no harm...
13153 Views
A lot of us look forward to the result of moving and not the process itself. It is pretty typical behavior, though. As modern people, many things...
12996 Views
Building a custom home is an exciting adventure. It’s your chance to bring your vision to life and create an area that sincerely displays...
12828 Views
Moving from one state, city, or even to a whole different county, is something that is either dictated by choice or circumstance. This is because,...
11878 Views
A membrane contactor is a device that enables the transfer of components between two immiscible phases, typically a gas and a liquid, through a...
10557 Views
Statistics
| Members | |
|---|---|
| Members: | 16984 |
| Publishing | |
|---|---|
| Articles: | 79,275 |
| Categories: | 202 |
| Online | |
|---|---|
| Active Users: | 2494 |
| Members: | 15 |
| Guests: | 2479 |
| Bots: | 33604 |
| Visits last 24h (live): | 5031 |
| Visits last 24h (bots): | 72628 |
