Class 2 Tungsten vs. CR011A Copper

Class 2 tungsten belongs to the otherwise unclassified metals classification, while CR011A copper belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is class 2 tungsten and the bottom bar is CR011A copper.

Class 2 Tungsten EN CR011A (CuAg0.04) Silver-Bearing Tough Pitch Copper

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		260
Elastic (Young's, Tensile) Modulus, GPa		120

Elongation at Break, %		5.7
Elongation at Break, %		15

Poisson's Ratio		0.28
Poisson's Ratio		0.34

Shear Modulus, GPa		100
Shear Modulus, GPa		43

Tensile Strength: Ultimate (UTS), MPa		860
Tensile Strength: Ultimate (UTS), MPa		220

Tensile Strength: Yield (Proof), MPa		580
Tensile Strength: Yield (Proof), MPa		130

Thermal Properties

Latent Heat of Fusion, J/g		160
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		20
Thermal Conductivity, W/m-K		390

Thermal Expansion, µm/m-K		4.6
Thermal Expansion, µm/m-K		17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		13
Electrical Conductivity: Equal Volume, % IACS		100

Electrical Conductivity: Equal Weight (Specific), % IACS		7.8
Electrical Conductivity: Equal Weight (Specific), % IACS		100

Otherwise Unclassified Properties

Density, g/cm³		15
Density, g/cm³		9.0

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

Embodied Energy, MJ/kg		350
Embodied Energy, MJ/kg		42

Embodied Water, L/kg		140
Embodied Water, L/kg		340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		44
Resilience: Ultimate (Unit Rupture Work), MJ/m³		29

Resilience: Unit (Modulus of Resilience), kJ/m³		640
Resilience: Unit (Modulus of Resilience), kJ/m³		76

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		16
Strength to Weight: Axial, points		6.8

Strength to Weight: Bending, points		13
Strength to Weight: Bending, points		9.0

Thermal Diffusivity, mm²/s		11
Thermal Diffusivity, mm²/s		110

Thermal Shock Resistance, points		52
Thermal Shock Resistance, points		7.8

Alloy Composition

Bismuth (Bi), %		0
Bismuth (Bi), %		0 to 0.00050

Copper (Cu), %		0
Copper (Cu), %		99.88 to 99.97

Oxygen (O), %		0
Oxygen (O), %		0 to 0.040

Silver (Ag), %		0
Silver (Ag), %		0.030 to 0.050

Tungsten (W), %		92.5
Tungsten (W), %		0

Residuals, %		7.5
Residuals, %		0