Is stainless steel tubing Magnetic?

Stainless steel tubing can be either magnetic or non-magnetic, depending on its composition and the specific grade of stainless steel used. 

1. Austenitic Stainless Steels (e.g., 304, 316): 
These are typically non-magnetic in their annealed state. They have a face-centered cubic crystal structure, which does not exhibit magnetism. However, they can become slightly magnetic when cold-worked (e.g., bent, drawn, or otherwise deformed).

2. Ferritic Stainless Steels (e.g., 430): 
These are generally magnetic because they have a body-centered cubic crystal structure, which allows for magnetic properties.

3. Martensitic Stainless Steels (e.g., 410, 420): 
These types are also magnetic due to their structure and composition.

In summary, whether stainless steel tubing is magnetic depends on the type of stainless steel.