Which of the following are the three main categories of tubing?

The three main categories of tubing are mechanical, structural, and pressure.

Mechanical tubing is designed for specific mechanical properties, often such as strength, working pressure, and dimensional tolerances. It is commonly used in machinery and automotive applications where specific load-bearing capabilities are essential.

Structural tubing, as the name suggests, is used primarily in construction and engineering applications. It provides support and stability in buildings, bridges, and other structures. This category includes materials like steel and aluminum, which are chosen for their structural integrity.

Pressure tubing is specifically designed to handle internal or external pressure. This type is crucial in applications such as piping systems for fluids and gases, where the ability to withstand pressure without failure is paramount.

Understanding these categories helps in selecting the right type of tubing for a particular application, ensuring safety and compliance with industry standards.