Which Alloy Has Better Thermal Conductivity: 304 SS or SAE 516 Grade 70?

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SUMMARY

The discussion centers on the comparison of thermal conductivity between 304 Stainless Steel and SAE 516 Grade 70 boiler steel for use in a heat transfer device. It is established that 304H, a variant of 304 Stainless Steel with higher carbon content, is recommended for applications involving exposure to temperatures of 1000°F. The choice of alloy significantly impacts thermal transfer rates, with 304H providing superior performance under high-temperature conditions compared to SAE 516 Grade 70.

PREREQUISITES
  • Understanding of thermal conductivity principles
  • Familiarity with material properties of 304 Stainless Steel and SAE 516 Grade 70
  • Knowledge of high-temperature applications in engineering
  • Basic concepts of heat transfer in materials
NEXT STEPS
  • Research the thermal conductivity values of 304H Stainless Steel
  • Investigate the mechanical properties of SAE 516 Grade 70 at elevated temperatures
  • Explore heat transfer calculations for different materials in engineering applications
  • Learn about the effects of carbon content on the properties of stainless steel alloys
USEFUL FOR

Engineers, materials scientists, and professionals involved in the design and optimization of heat transfer systems will benefit from this discussion.

cwgarr
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I am trying to decide what alloy I should use in an experimental heat transfer device. I am considering 2 materials- 304 Stainless Steel and SAE 516 Grade 70 boiler steel. I want to choose the material that has the best conductivity characteristics. To be clear, I want the material that has the best thermal transfer rate. Both metals would be approximately .125" thick and would be exposed to a source heat of 1000F.
 
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