The types of stainless steel are generally divided into austenitic stainless steel and martensite stainless steel. When the temperature reaches the critical value, the stainless steel pipe will deform and its properties will also change.
The heat bearing range of stainless steel is generally between 1000~1300 ℃, among which the most heat-resistant stainless steel model 316 stainless steel can reach a maximum of 1300 ℃. Stainless steel generally has high heat resistance, but when the temperature reaches a certain critical point, stainless steel will undergo deformation, and the critical point varies among different models of stainless steel.
For example, the commonly used 304 stainless steel pipe has a maximum operating temperature between 750 and 860 ℃. If the temperature reaches above 450 ℃, the yield force will make it change from austenite to martensite, which will produce a qualitative change in properties.
310S type stainless steel seamless pipe is also austenitic stainless steel, and the heating temperature is usually between 1150~1260 ℃. Due to the high chromium and nickel content, it has good corrosion resistance and high temperature resistance. However, when the temperature exceeds 900~1150 ℃, it will undergo softening deformation.
The heat-resistant range of 316 stainless steel pipe is relatively higher, roughly between 1200 and 1300 ℃. Due to the addition of Mo element in its composition, its heat resistance and corrosion resistance are greatly improved, and its price is relatively higher. It is generally mainly used in marine engineering.
In different temperature environments, different types of stainless steel pipes can be selected, and it is important to find a reputable and reliable manufacturer for selection. Sichuan Liaofu Special Steel is worth for your trust!