Thermal Conductivity – Aluminum, Steel, Copper

Mosi Li
Mosi Li

Director Project Engineer at 3Q Machining - China top CNC Machining Custom Part Manufacturer

Thermal conductivity: refers to the amount of heat transferred through a unit horizontal cross-sectional area per unit time when the temperature vertical downward gradient is 1°C/m, reflecting the thermal conductivity of a substance. The symbol is λ or K. The thermal conductivity of various substances is mainly determined by experiment, and its theoretical estimation is an active subject in modern physics and physical chemistry. Thermal conductivity is generally not related to pressure, but is greatly affected by temperature.

With the rapid development of science and technology, more and more polymer materials and nano materials are emerging. The experimental determination of thermal conductivity of various new substances and materials will open up a new and unknown field, which will inevitably lead to a new leap in modern physics. At the same time, it will lay a solid theoretical foundation for the development and research of new thermal conductivity materials and new thermal insulation materials.

Thermal Conductivity – Aluminum, Steel, Copper

Thermal conductivity of solid aluminum 237W/mK

Thermal conductivity of commonly used metal materials:

Material thermal conductivity (W/mk)

Pure aluminum 217.7

Aluminum alloy 121-151

Pure copper 376.8

Brass 92.1

Cast iron 54.4

Tinplate 62.8

Steel 58.6-41.9

Thermal Conductivity – Aluminum, Steel, Copper

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