Stainless steel is a material resistant to rust, but its resistance temperature may vary depending on the type of stainless steel and the usage conditions. Stainless steels are generally usable at various temperatures ranging from 800 to 1650 degrees Celsius (1472 to 3002 degrees Fahrenheit).
304-grade stainless steel is one of the most commonly used types of stainless steel and is often considered a suitable material for high-temperature applications. Therefore, 304-grade stainless steel is regarded as a material that can withstand high temperatures from a heat resistance perspective.
However, the maximum temperature at which stainless steel can be used for a specific application may vary depending on factors such as design, material quality, and other considerations. If you are considering using stainless steel in high-temperature applications, it is important to select a material that is suitable for your specific usage conditions and requirements and to perform the necessary durability tests.