For containers made of the same steel material but with different thicknesses, how do their temperature resistance and pressure resistance change?
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For containers made of the same material, steel, and of the same size, if different thicknesses of material are used, the pressure resistance of the resulting containers will increase accordingly. How will their temperature resistance change, and will it also increase?
As the temperature rises, the allowable stress of the material decreases
It can’t be generalized, nor is it proportional. For example, as the thickness increases, the tensile strength and yield strength of the sheet material decrease. In other words, it follows a single-peak curve: as the wall thickness increases, the strength reaches its peak, and then as the thickness continues to increase, the strength actually decreases. Another reason is that heat treatment is required when the thickness exceeds a certain level. The same is true for temperature.