R60804 Alloy vs. C87300 Bronze

R60804 alloy belongs to the otherwise unclassified metals classification, while C87300 bronze belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is R60804 alloy and the bottom bar is C87300 bronze.

UNS R60804 Zirconium-Tin Alloy UNS C87300 Silicon Bronze

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		98
Elastic (Young's, Tensile) Modulus, GPa		120

Elongation at Break, %		22
Elongation at Break, %		22

Poisson's Ratio		0.34
Poisson's Ratio		0.34

Shear Modulus, GPa		36
Shear Modulus, GPa		43

Tensile Strength: Ultimate (UTS), MPa		430
Tensile Strength: Ultimate (UTS), MPa		350

Tensile Strength: Yield (Proof), MPa		270
Tensile Strength: Yield (Proof), MPa		140

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		280

Specific Heat Capacity, J/kg-K		270
Specific Heat Capacity, J/kg-K		410

Thermal Conductivity, W/m-K		22
Thermal Conductivity, W/m-K		28

Thermal Expansion, µm/m-K		6.0
Thermal Expansion, µm/m-K		17

Otherwise Unclassified Properties

Density, g/cm³		6.5
Density, g/cm³		8.6

Embodied Water, L/kg		290
Embodied Water, L/kg		300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		85
Resilience: Ultimate (Unit Rupture Work), MJ/m³		62

Resilience: Unit (Modulus of Resilience), kJ/m³		380
Resilience: Unit (Modulus of Resilience), kJ/m³		86

Stiffness to Weight: Axial, points		8.3
Stiffness to Weight: Axial, points		7.5

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		19

Strength to Weight: Axial, points		18
Strength to Weight: Axial, points		11

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		13

Thermal Diffusivity, mm²/s		12
Thermal Diffusivity, mm²/s		8.0

Thermal Shock Resistance, points		53
Thermal Shock Resistance, points		13

Alloy Composition

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Chromium (Cr), %		0.070 to 0.13
Chromium (Cr), %		0

Copper (Cu), %		0
Copper (Cu), %		94 to 95.7

Iron (Fe), %		0.18 to 0.24
Iron (Fe), %		0 to 0.2

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

Manganese (Mn), %		0
Manganese (Mn), %		0.8 to 1.5

Silicon (Si), %		0
Silicon (Si), %		3.5 to 5.0

Tin (Sn), %		1.2 to 1.7
Tin (Sn), %		0

Zinc (Zn), %		0
Zinc (Zn), %		0 to 0.25

Zirconium (Zr), %		97.8 to 98.6
Zirconium (Zr), %		0

Residuals, %		0 to 0.12
Residuals, %		0 to 0.5