What is the maximum temperature limit for a non-special alloy steel valve?

The maximum temperature limit for a non-special alloy steel valve is indeed 650°C. Non-special alloy steels, sometimes referred to as carbon steels, are generally not designed to withstand extremely high temperatures compared to special alloys that are formulated to endure higher thermal stresses and corrosive environments.

At temperatures above 650°C, non-special alloy steels begin to lose their strength and structural integrity, which can lead to premature failure, warping, or other issues in high-pressure systems. This temperature limit ensures that the valve can maintain its functional properties and safety standards in industrial applications.

Understanding the properties of different materials is crucial in power engineering, where valves are often exposed to high temperatures and pressures. Choosing the appropriate material based on its temperature tolerance plays a vital role in the reliability and longevity of the system.