Some believe that the hardened gray iron used to make the components simply "fatigues" with age-as metal parts that go through millions of stress reversals eventually do.

Some believe that the hardened gray iron used to make the components simply "fatigues" with age—as metal parts that go through millions of stress reversals eventually do.

When in the age-hardened condition, Monel K500 Mesh has a greater tendency toward stress-corrosion cracking in some conditions than Monel 400 alloy Mesh.