Thermal conductivity against densityHigher and further left: spreads more heat for its weightThermal expansion against thermal conductivityLower and further right: warps less when heated
Sources2 documents: Cleveland-Cliffs, National Institute of Standards and Technology
Values for
Wrought. Cleveland-Cliffs / AK Steel ARMCO Pure Iron Product Data Bulletin (07/2022): Table 1 typical physical properties, Table 2 typical mechanical properties after SRA/recrystallization anneal.
1
ARMCO Pure Iron Product Data Bulletin (2022)Cleveland-Cliffsarchived copyYield strength: typical (0.2% YS), hot rolled + SRA/recrystallization annealUltimate tensile strength: typical, SRA/recrystallization annealElongation at break: typical, gauge 4D0Young's modulus (stiffness): typical, after SRA/recrystallization annealDensity: typicalThermal conductivity: typical at 20 °CThermal expansion: mean, 20-399 °CSpecific heat: typicalMelting point: typical
2
Elastic Properties of Metals and Alloys, I. Iron, Nickel, and Iron-Nickel Alloys, J. Phys. Chem. Ref. Data 2 (1973)National Institute of Standards and Technologyarchived copyPoisson's ratio: NIST critically evaluated best value (polycrystalline iron)
Iron has a thermal conductivity of 73.2 W/m·K (42.3 BTU/hr·ft·°F). Basis: typical at 20 °C. Source: Cleveland-Cliffs, ARMCO Pure Iron Product Data Bulletin (2022)archived copy.
Specific heat of Iron
The specific heat capacity of Iron is 450 J/kg·K (0.107 BTU/lb·°F). Basis: typical. Source: Cleveland-Cliffs, ARMCO Pure Iron Product Data Bulletin (2022)archived copy.
Coefficient of thermal expansion of Iron
Iron expands 13.7 µm/m·K (7.61 µin/in·°F): a 100 mm part grows 68.5 µm over a 50 °C rise. Basis: mean, 20-399 °C. Source: Cleveland-Cliffs, ARMCO Pure Iron Product Data Bulletin (2022)archived copy.
Thermal diffusivity of Iron
Computed from the conductivity, density and specific heat (k / ρc): 20.7 mm²/s, how fast a temperature change spreads through it.
Melting point of Iron
Iron melts at 1,532 °C (2,790 °F). Basis: typical. Source: Cleveland-Cliffs, ARMCO Pure Iron Product Data Bulletin (2022)archived copy.