Class 4 Tungsten vs. C65100 Bronze

Class 4 tungsten belongs to the otherwise unclassified metals classification, while C65100 bronze belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is class 4 tungsten and the bottom bar is C65100 bronze.

Class 4 Tungsten UNS C65100 (CW115C) Silicon Bronze

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		2.3
Elongation at Break, %		2.4 to 50

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		280 to 560

Tensile Strength: Yield (Proof), MPa		580
Tensile Strength: Yield (Proof), MPa		95 to 440

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		230

Specific Heat Capacity, J/kg-K		130
Specific Heat Capacity, J/kg-K		390

Thermal Conductivity, W/m-K		30
Thermal Conductivity, W/m-K		57

Thermal Expansion, µm/m-K		4.5
Thermal Expansion, µm/m-K		18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		17
Electrical Conductivity: Equal Volume, % IACS		12

Electrical Conductivity: Equal Weight (Specific), % IACS		9.7
Electrical Conductivity: Equal Weight (Specific), % IACS		12

Otherwise Unclassified Properties

Density, g/cm³		16
Density, g/cm³		8.8

Embodied Carbon, kg CO₂/kg material		24
Embodied Carbon, kg CO₂/kg material		2.6

Embodied Energy, MJ/kg		360
Embodied Energy, MJ/kg		41

Embodied Water, L/kg		150
Embodied Water, L/kg		300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		16
Resilience: Ultimate (Unit Rupture Work), MJ/m³		12 to 110

Resilience: Unit (Modulus of Resilience), kJ/m³		620
Resilience: Unit (Modulus of Resilience), kJ/m³		39 to 820

Stiffness to Weight: Axial, points		9.6
Stiffness to Weight: Axial, points		7.3

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

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		8.7 to 18

Strength to Weight: Bending, points		12
Strength to Weight: Bending, points		11 to 17

Thermal Diffusivity, mm²/s		15
Thermal Diffusivity, mm²/s		16

Thermal Shock Resistance, points		46
Thermal Shock Resistance, points		9.5 to 19

Alloy Composition

Copper (Cu), %		0
Copper (Cu), %		94.5 to 99.2

Iron (Fe), %		0
Iron (Fe), %		0 to 0.8

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

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.7

Silicon (Si), %		0
Silicon (Si), %		0.8 to 2.0

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

Zinc (Zn), %		0
Zinc (Zn), %		0 to 1.5

Residuals, %		0
Residuals, %		0 to 0.5