Pipe Schedule Chart

An ANSI pipe schedule is a standard classification system used throughout industries to classify pipe for high- or low-pressure applications, applications involving high or low temperatures, and more. The higher the pipe schedule number, the thicker the pipe wall.

Totten Tubes maintains the USA’s most diverse and specialized inventory of steel tube and pipe. In addition to our vast range of products, we are your go-to source for industrial steel knowledge, resources, and services. Use this pipe schedule chart to discover your steel pipe’s ANSI pipe schedule. For in-depth product information, including our available steel pipe with a variety of schedules, visit our ANSI spec sheet summaries.

                    

How to Use a Steel Pipe Schedule Chart

While pipe schedule exists to estimate a pipe’s ID, outside diameter (OD) and wall thickness are used to calculate the final value. Totten Tubes provides an easy-to-use steel pipe schedule chart to assist you in finding the best option for your industrial application. Follow these straightforward steps:

1. Measure your pipe’s OD and wall thickness
2. Using the pipe schedule chart above, find the corresponding OD or pipe size in the vertical column
3. Using the pipe schedule chart above, find the corresponding thickness in the horizontal row
4. Identify the ANSI pipe schedule value

For example, let’s say your steel pipe OD is 3.5” and the thickness is 0.216”. By locating these values on the above chart, you will find that you have an ANSI schedule 40 steel pipe.

Is Schedule 40 or Schedule 80 Thicker?

Schedule 40 and schedule 80 are two of the most commonly used ANSI pipe schedules. The main differences between these two options are wall thickness, ID, and weight. Schedule 80 pipe is thicker than schedule 40 pipe due to schedule 80 pipe’s wall measurements, smaller inside diameter, and higher weight. While these numbers can vary depending on nominal pipe size, they provide a starting point for reference when using a pipe schedule chart.

Why Does Pipe Schedule Matter?

Pipe schedule matters because it helps determine which steel pipe is best for your steel piping application or industry. For example, any project involving compressed air or natural gas will require stronger pipes with higher schedule values to withstand high-pressure operations without bursting. However, a thinner pipe with a lower schedule may be adequate when dealing with standard plumbing systems.
The best ANSI steel pipe schedule for your job will depend on your short-term goals, long-term requirements, and specific demands of your assembly.

Your Source for Steel Pipe that Meets Strict Specification Requirements

At Totten Tubes, we maintain a full inventory of welded and seamless steel pipe in multiple grades, finishes, and wall thicknesses. Whether you need high-strength carbon steel or corrosion-resistant stainless steel, you can count on Totten Tubes for ready-to-ship solutions backed by decades of steel pipe expertise.

Steel and Stainless Steel Pipe Options at Totten Tubes

• Carbon Steel Pipe
• Seamless Steel Pipe
• Galvanized Steel Pipe
• Stainless Steel Pipe

Visit our Steel Pipe Products page or our Stock List for a complete overview of available materials, dimensions, and specifications.

Contact Us to Learn How Totten Tubes Can Be Your Steel Pipe Supplier

Totten Tubes is your full-service supplier for steel tube and pipe. Once we've determined the best product for your planned use, we offer custom steel tube fabrication services to customize all orders to your specifications. From tube laser cutting to tube bending and beyond, we create tailored steel pipe solutions to satisfy the requirements of any order. With locations spanning the North American West Coast, we are ready to provide fast turnarounds on hard-to-find steel piping products for competitive prices.

Contact us today with any questions or for more information about pipe schedules. Request a quote to receive inventory availability, pricing information, and/or timeline estimates specific to custom steel pipe order.