Stainless Steel Tubing’s tend to be distinguished based on their functions. These SS tubings are also classified in terms of different grades and types.

304 Stainless Steel Pipe

Stainless Steel 304 pipe is a popular choice for tubing and piping applications because it is highly chemical and corrosion resistant. Type 304 stainless steel, however is not compatible with applications where temperatures drop between 800 and 1640 degrees Fahrenheit (F) because it is vulnerable to precipitation of carbide, as a result of the 0.08 percent carbon content limit of the material.

What are different types of Stainless Steel Tubing?

Here are some of the different types of SS Tubings:

Stainless Steel Pressure Tube

The SS Pressure Tubings are manufactured from either solid chromium or a mixture of nickel and chromium. Seamless and welded pipe, electric fusion welded pipe for high-pressure applications, broad diameter soldered pipe for corrosive or high-temperature applications, and seamless and welded ferritic and austenitic stainless steel pipe are types of stainless steel pressure pipe.

Stainless Steel Sanitary Tubing

Sanitation is a high priority for applications where stainless steel tubing or piping has to come into contact with foodstuffs and other sensitive materials. Stainless steel sanitary tubing is used because it has high corrosion-resistance, does not tarnish, and is easy to keep clean. Different tolerances can be reached for particular applications.

SS Tubing for General Corrosion-Resistance

Ferritic or martensitic steel types are processed to be either heat-treated or annealed (those made with the most chromium). This group of general steel is ideal for applications requiring corrosion resistance in excess of other characteristics. Austenitic stainless steels (with a high content of chromium and nickel) give much greater resistance and can be used in the same general conditions as ferritic and martensitic steels.
Stainless Steel Mechanical Tubing

SS mechanical tubing is usually used in the manufacturing of cylinders, bearings, and other hollow-formed components. In addition to the more conventional circular tubing cross-section, tubing may be manipulated to provide a number of cross-sectional configurations, such as square and rectangular. For mechanical tubing applications, generally, grades ASTMA 511 and A554 are used.

Stainless Steel Aircraft Tubing

Due to their heat and corrosion-resistance, chromium and nickel form stainless steel is used in highly specialised aircraft applications. A common option for welded parts is low-carbon types of stainless steel.
Aircraft structural tubing is used for applications requiring seamless and welded tubing in larger sizes (1.6 to 125 mm in outside diameter). This type of stainless steel is produced in compliance with Aerospace Material Requirements (AMS) or Military Specifications (MIL Specs).

Aircraft Hydraulic-Line Tubing

Aircraft hydraulic line tubing, another type of aircraft tubing, is used as fuel-injection lines and hydraulic systems in aerospace applications, and tends to be thin. Due to the high strength, corrosion resistance, and ductility of the steel, it is also made from type 304 or 304 L stainless steel.