Class 3 Tungsten vs. C14520 Copper

Class 3 tungsten belongs to the otherwise unclassified metals classification, while C14520 copper belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is class 3 tungsten and the bottom bar is C14520 copper.

Class 3 Tungsten UNS C14520 Tellurium Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		270
Elastic (Young's, Tensile) Modulus, GPa		120

Elongation at Break, %		3.4
Elongation at Break, %		9.0 to 9.6

Poisson's Ratio		0.28
Poisson's Ratio		0.34

Shear Modulus, GPa		100
Shear Modulus, GPa		43

Tensile Strength: Ultimate (UTS), MPa		830
Tensile Strength: Ultimate (UTS), MPa		290 to 330

Tensile Strength: Yield (Proof), MPa		580
Tensile Strength: Yield (Proof), MPa		230 to 250

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		210

Specific Heat Capacity, J/kg-K		120
Specific Heat Capacity, J/kg-K		390

Thermal Conductivity, W/m-K		30
Thermal Conductivity, W/m-K		320

Thermal Expansion, µm/m-K		4.5
Thermal Expansion, µm/m-K		17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		15
Electrical Conductivity: Equal Volume, % IACS		85

Electrical Conductivity: Equal Weight (Specific), % IACS		8.5
Electrical Conductivity: Equal Weight (Specific), % IACS		85

Otherwise Unclassified Properties

Density, g/cm³		15
Density, g/cm³		8.9

Embodied Carbon, kg CO₂/kg material		23
Embodied Carbon, kg CO₂/kg material		2.6

Embodied Energy, MJ/kg		360
Embodied Energy, MJ/kg		42

Embodied Water, L/kg		150
Embodied Water, L/kg		310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		25
Resilience: Ultimate (Unit Rupture Work), MJ/m³		24 to 29

Resilience: Unit (Modulus of Resilience), kJ/m³		630
Resilience: Unit (Modulus of Resilience), kJ/m³		240 to 280

Stiffness to Weight: Axial, points		9.6
Stiffness to Weight: Axial, points		7.2

Stiffness to Weight: Bending, points		14
Stiffness to Weight: Bending, points		18

Strength to Weight: Axial, points		15
Strength to Weight: Axial, points		9.0 to 10

Strength to Weight: Bending, points		13
Strength to Weight: Bending, points		11 to 12

Thermal Diffusivity, mm²/s		15
Thermal Diffusivity, mm²/s		94

Thermal Shock Resistance, points		49
Thermal Shock Resistance, points		10 to 12

Alloy Composition

Copper (Cu), %		0
Copper (Cu), %		99.2 to 99.596

Phosphorus (P), %		0
Phosphorus (P), %		0.0040 to 0.020

Tellurium (Te), %		0
Tellurium (Te), %		0.4 to 0.7

Tungsten (W), %		95
Tungsten (W), %		0

Residuals, %		5.0
Residuals, %		0