Mechanical properties of stainless steel tubes
Strength (tensile strength, yield strength) the strength of stainless steel is determined by various factors, but the most important and basic factor is the addition of different chemical factors, mainly metallic elements. Different types of stainless steel have different strength characteristics due to their differences in chemical composition.
The phenomenon of deformation due to external forces increases with time is called creep. At a certain temperature, especially at high temperature, the greater the load, the faster the creep occurs. Under a certain load, the higher the temperature and the longer the time, the greater the possibility of creep. On the contrary, the lower the temperature and the slower the creep rate, the less creep is when the temperature is low to a certain temperature. This minimum temperature varies according to the type of steel. In general, pure iron is at about 330 degrees, while stainless steel has been strengthened by various measures, so the temperature is above 550.
High temperature fatigue is the process of damage to fracture due to repeated stress changes in the material at high temperature. The results show that, at a certain high temperature, the fatigue strength of the 8 power high temperature of 10 is 1/2 of the high temperature tensile strength at this temperature.