GB/T 4339-2008
ActiveTest methods for thermal expansion characteristic parameters of metallic materials
金属材料热膨胀特征参数的测定
Application Summary AI generated
This standard specifies the test methods for determining the linear thermal expansion coefficient and other thermal expansion parameters of metallic materials. It is applied in metallurgy, materials science, and manufacturing industries for quality control and material selection, particularly for components used in high-temperature environments such as aerospace, automotive engines, and power generation equipment. The standard ensures accurate measurement of dimensional changes with temperature, critical for designing precision parts and assemblies that must maintain fit and function under thermal cycling.
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