What is the performance of stainless steel strip in low temperature environment
source:
m.novoreg.cn | Release time:2025年03月25日
Stainless steel strip usually has the following performance in low temperature environment:
1. mechanical properties: as the temperature decreases, the strength and hardness will be improved. This is because the low temperature prevents the dislocation movement, which increases the difficulty of material deformation and strength. At the same time, the stainless steel strip can still maintain good toughness and is not prone to brittle fracture. For example, at liquid helium temperature (about -269 ℃), the impact toughness of some austenitic stainless steel strips can still be maintained at a high level, which makes them widely used in low temperature equipment manufacturing.
2. corrosion resistance: generally, low temperature environment will not adversely affect the corrosion resistance of stainless steel strip. On the contrary, due to the slow chemical reaction rate at low temperature, the passive film on the surface of stainless steel strip is more stable, and its corrosion resistance may be improved. For example, in some low-temperature chemical storage equipment, the stainless steel strip can stably resist the corrosion of chemical medium for a long time.
3. dimensional stability: the stainless steel strip has good dimensional stability in low temperature environment. Its coefficient of thermal expansion is relatively small. When the temperature is reduced, the size change is not obvious, and it can maintain good accuracy and stability, which is very important for some low-temperature applications requiring high dimensional accuracy, such as low-temperature parts manufacturing in aerospace.