Class 4 Tungsten vs. C63800 Bronze

Class 4 tungsten belongs to the otherwise unclassified metals classification, while C63800 bronze belongs to the copper alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is class 4 tungsten and the bottom bar is C63800 bronze.

Class 4 Tungsten UNS C63800 Aluminum Bronze

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		270
Elastic (Young's, Tensile) Modulus, GPa		110

Elongation at Break, %		2.3
Elongation at Break, %		7.9 to 41

Poisson's Ratio		0.28
Poisson's Ratio		0.34

Shear Modulus, GPa		110
Shear Modulus, GPa		43

Tensile Strength: Ultimate (UTS), MPa		790
Tensile Strength: Ultimate (UTS), MPa		460 to 1010

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		240

Specific Heat Capacity, J/kg-K		130
Specific Heat Capacity, J/kg-K		410

Thermal Conductivity, W/m-K		30
Thermal Conductivity, W/m-K		40

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		17
Electrical Conductivity: Equal Volume, % IACS		10

Electrical Conductivity: Equal Weight (Specific), % IACS		9.7
Electrical Conductivity: Equal Weight (Specific), % IACS		10

Otherwise Unclassified Properties

Density, g/cm³		16
Density, g/cm³		8.6

Embodied Carbon, kg CO₂/kg material		24
Embodied Carbon, kg CO₂/kg material		2.8

Embodied Energy, MJ/kg		360
Embodied Energy, MJ/kg		45

Embodied Water, L/kg		150
Embodied Water, L/kg		330

Common Calculations

Stiffness to Weight: Axial, points		9.6
Stiffness to Weight: Axial, points		7.4

Stiffness to Weight: Bending, points		14
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		15 to 33

Strength to Weight: Bending, points		12
Strength to Weight: Bending, points		15 to 26

Thermal Diffusivity, mm²/s		15
Thermal Diffusivity, mm²/s		11

Thermal Shock Resistance, points		46
Thermal Shock Resistance, points		17 to 36

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		2.5 to 3.1

Cobalt (Co), %		0
Cobalt (Co), %		0.25 to 0.55

Copper (Cu), %		0
Copper (Cu), %		92.4 to 95.8

Iron (Fe), %		0
Iron (Fe), %		0 to 0.2

Lead (Pb), %		0
Lead (Pb), %		0 to 0.050

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.1

Nickel (Ni), %		0
Nickel (Ni), %		0 to 0.2

Silicon (Si), %		0
Silicon (Si), %		1.5 to 2.1

Tungsten (W), %		97
Tungsten (W), %		0

Zinc (Zn), %		0
Zinc (Zn), %		0 to 0.8

Residuals, %		0
Residuals, %		0 to 0.5