“Steel tubes and fittings are commonly used in various industries and applications, such as construction, plumbing, manufacturing, and transportation. The sizes and types of steel tubes and fittings can vary significantly depending on their intended use. Below are some commonly used steel tube types and their corresponding sizes:
Steel Pipe: Steel pipes are commonly used for fluid and gas transportation and structural applications. They come in different schedules, which refer to their wall thickness. Common sizes include:
Schedule 40: NPS 1/8″” to NPS 36″” (Nominal Pipe Size, indicating the approximate inner diameter in inches)
Schedule 80: NPS 1/8″” to NPS 36″”
Schedule 160: NPS 1/8″” to NPS 24″”
Steel Tubing (Round): Steel round tubing is used in structural and mechanical applications. Sizes are typically specified by their outside diameter (OD) and wall thickness:
OD range: 1/4″” to 12″”
Wall thickness: Various options, such as 18 gauge (0.049″”) to extra-heavy (XXH) thicknesses.
Steel Tubing (Square and Rectangular): These types of steel tubing are used in structural and architectural applications:
Square Tubing: Typically available in sizes ranging from 1/2″” x 1/2″” to 12″” x 12″”.
Rectangular Tubing: Available in various sizes, such as 1″” x 2″” to 12″” x 6″”.
Steel Fittings: Steel fittings are used to connect, join, or terminate steel tubes. They come in various types, such as elbows, tees, couplings, reducers, and flanges. The sizes of fittings will depend on the corresponding pipe or tubing size they are designed to connect to.
It’s important to note that these sizes are not exhaustive, and there are many other specialized steel tubes and fittings available for specific applications. Additionally, different countries and regions might have variations in standard sizes and specifications, so it’s essential to refer to local standards and codes when selecting steel tubes and fittings for your specific project.”