304 stainless steel is a general-purpose stainless steel containing 18% chromium and 8% nickel, offering excellent corrosion resistance and mechanical strength. 304 stainless steel maintains excellent stability in high-temperature environments and is not easily oxidized or deformed, making it an ideal material for heat pipes. Compared to ordinary carbon steel, 304 stainless steel performs better in humid or corrosive environments, significantly extending the service life of heat pipes. 304 stainless steel also has excellent thermal conductivity, with a coefficient of approximately 16.3 W/(m·K), effectively transferring heat from the heat source to the heat dissipation surface.

The primary function of fins is to increase the heat dissipation surface area and improve heat exchange efficiency. Common fin types include spiral fins, longitudinal fins, and annular fins.

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