Aggressive products introduce the risk of corrosion. In principle, customers decide on the material quality, but they sometimes make the wrong choice. That’s why it is very important for the non-expert to mention the potential application (inside, outside, aggressive environment, swimming pool) when they ask about prices so they can be offered the right material quality. You don’t just order a “ground or brushed SS tube), but rather a “ground SS tube for outside use”.
Make sure you select the right material quality by using the corrosion tables. The most commonly used material qualities are SS 304 and SS 316. You can find out more about choosing between 304/316 here.