The thermal expansion coefficient of TZM molybdenum alloy changes with the temperature, and it is generally 5.4×10^-6/℃ in the range of 20-1000 degrees Celsius. The coefficient of thermal expansion refers to the ratio of the length change of the material in the unit temperature range when the temperature changes. For materials used in high temperature applications, their thermal expansion coefficient is an important performance indicator, because the thermal expansion coefficient of materials under high temperature conditions may cause problems such as material deformation and cracking. The low thermal expansion coefficient of TZM molybdenum alloy makes it maintain stable performance in high temperature environment.
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