Properties of Tungsten (W)
Tungsten is a chemical element with the symbol (W) and atomic number 74. It is a dense, hard, and steel-gray metal with the highest melting point of any element. Tungsten has excellent heat and electrical conductivity properties, making it valuable in various industrial applications.
The following table provides a comprehensive list of tungsten (W) properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).
Click on the icon to switch between Metric and Imperial units.
Physical Properties | Metric |
---|---|
Crystal Structure | Body-centered cubic (bcc) |
Atomic Number | 74 |
Molar Mass | 183.84 g/mol |
Density | 19300 kg/m3 |
Mechanical Properties | Metric |
Young’s Modulus (E) | 411 GPa |
Shear Modulus (G) | 160.6 GPa |
Bulk Modulus (K) | 311 GPa |
Poisson’s Ratio (ν) | 0.28 |
Mohs Hardness | 7.5 |
Thermal Properties | Metric |
Melting Point | 3414 °C |
Boiling Point | 5656 °C |
Thermal Conductivity (27°C) | 174 W/m·K |
Specific Heat Capacity (Cp) (25°C) | 132 J/kg·K |
Coefficient of Thermal Expansion (αL) (25°C) | 4.5×10-6 1/°C |
Electrical Properties | Metric |
Electrical Resistivity | 5.39×10-6 Ω·cm |
Unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)
Related Pages
References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) A.M. Howatson, P.G. Lun, J.D. Todd, P.D. Engineering Tables and Data. United Kingdom: University of Oxford, Department of Engineering Science, 2009.