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Oct 12, 2018
304 stainless steel pipe thermal conductivity is about 16.2 W/(m·K) at 100°C, which is low compared with carbon steel, aluminum and copper. It increases with temperature, reaching about 21.5 W/(m·K) at 500°C. In thermal engineering, this value is an important factor in material selection and heat transfer design.
Basic Data on Thermal Conductivity of 304 Stainless Steel
Thermal conductivity (λ) measures how easily heat flows through a material. For 304 stainless steel, it is low among common metals and changes with temperature:
| Temperature | Thermal Conductivity, W/(m·K) | Source |
| 20°C | about 14.4 | Engineering ToolBox, metals table (Type 304) |
| 100°C | 16.2 | Published 304/304L stainless steel data sheets |
| 500°C | 21.5 | Published 304/304L stainless steel data sheets |
Typical values for annealed 304. The 20°C value comes from a different source than the 100°C and 500°C values, so small differences between rows may reflect the source rather than the material. Actual values vary slightly with supplier and heat.
At ambient temperature, 304 stainless steel (about 15 W/(m·K)) conducts heat far less well than carbon steel (about 50 W/(m·K), e.g. AISI 1020) or pure aluminum (about 237 W/(m·K)). Other austenitic grades behave similarly. Its corrosion resistance and strength make up for this limitation in many applications.
Read a full guide: Thermal Conductivity of 304 Stainless Steel Pipes
Article source: https://article-realm.com/article/Business/85441-304-stainless-steel-pipe-thermal-conductivity.html
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https://www.permanentsteel.com/Permanent Steel Manufacturing Co.,Ltd (PMC) have years of experience in manufacturing of carbon steel pipe, stainless steel tube, hollow section, pipe fittings.(Fluid Pipe/Boiler Tube/Fire Pipe/Line Pipe/Structure Tube) Please refer to: https://www.permanentsteel.com
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