What material is commonly used in pressure gauges for its durability?

Stainless steel is commonly used in pressure gauges due to its exceptional durability and resistance to corrosion. This material can withstand harsh environmental conditions and is ideal for applications where it may encounter moisture, chemicals, or high temperatures. Its strength allows for accurate pressure readings over time without significant wear or degradation of the gauge itself.

While plastic is lightweight and can be used in certain less demanding applications, it does not provide the same level of durability and can be prone to cracking or breaking. Aluminum is lighter than stainless steel and can be used in some gauge applications, but it lacks the same resistance to corrosion and can be less durable overall. Copper is also utilized in some pressure gauges, particularly for its excellent conductivity, but it can corrode more easily than stainless steel, especially in certain environments.

Thus, stainless steel emerges as the optimal choice for ensuring the longevity and reliability of pressure gauges in various settings.