That's aluminium. Steel is magical because it has an infinite fatigue life for cyclic stress below the endurance limit and you can design things to operate in this region. Pressure vessels are also designed to leak before bursting, so a crack won't cause an explosion.
Having said that, you still need to do maintenance just like you do on a wooden house or a wheeled cart or anything that might fail dangerously. Wood rots over time!
Having said that, you still need to do maintenance just like you do on a wooden house or a wheeled cart or anything that might fail dangerously. Wood rots over time!