Class 4 Tungsten vs. C87610 Bronze

Class 4 tungsten belongs to the otherwise unclassified metals classification, while C87610 bronze 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 4 tungsten and the bottom bar is C87610 bronze.

Class 4 Tungsten UNS C87610 (Alloy 12A) Silicon 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, %		22

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		350

Tensile Strength: Yield (Proof), MPa		580
Tensile Strength: Yield (Proof), MPa		140

Thermal Properties

Latent Heat of Fusion, J/g		170
Latent Heat of Fusion, J/g		270

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		28

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		6.1

Electrical Conductivity: Equal Weight (Specific), % IACS		9.7
Electrical Conductivity: Equal Weight (Specific), % IACS		6.4

Otherwise Unclassified Properties

Density, g/cm³		16
Density, g/cm³		8.5

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

Embodied Energy, MJ/kg		360
Embodied Energy, MJ/kg		43

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		62

Resilience: Unit (Modulus of Resilience), kJ/m³		620
Resilience: Unit (Modulus of Resilience), kJ/m³		88

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		11

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

Thermal Diffusivity, mm²/s		15
Thermal Diffusivity, mm²/s		8.1

Thermal Shock Resistance, points		46
Thermal Shock Resistance, points		13

Alloy Composition

Copper (Cu), %		0
Copper (Cu), %		90 to 94

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

Lead (Pb), %		0
Lead (Pb), %		0 to 0.2

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.25

Silicon (Si), %		0
Silicon (Si), %		3.0 to 5.0

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

Zinc (Zn), %		0
Zinc (Zn), %		3.0 to 5.0

Residuals, %		0
Residuals, %		0 to 0.5