C63020 Bronze vs. ASTM B631 Class A

C63020 bronze belongs to the copper alloys classification, while ASTM B631 class A belongs to the otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is C63020 bronze and the bottom bar is ASTM B631 class A.

UNS C63020 Aluminum-Nickel Bronze ASTM B631 Class A Silver-Tungsten Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		120
Elastic (Young's, Tensile) Modulus, GPa		220

Poisson's Ratio		0.33
Poisson's Ratio		0.3

Shear Modulus, GPa		44
Shear Modulus, GPa		85 to 86

Thermal Properties

Latent Heat of Fusion, J/g		230
Latent Heat of Fusion, J/g		160

Melting Completion (Liquidus), °C		1070
Melting Completion (Liquidus), °C		2680 to 2690

Specific Heat Capacity, J/kg-K		450
Specific Heat Capacity, J/kg-K		160

Thermal Conductivity, W/m-K		40
Thermal Conductivity, W/m-K		420

Thermal Expansion, µm/m-K		18
Thermal Expansion, µm/m-K		11

Otherwise Unclassified Properties

Density, g/cm³		8.2
Density, g/cm³		15

Embodied Carbon, kg CO₂/kg material		3.6
Embodied Carbon, kg CO₂/kg material		43

Embodied Energy, MJ/kg		58
Embodied Energy, MJ/kg		670

Common Calculations

Stiffness to Weight: Axial, points		8.0
Stiffness to Weight: Axial, points		8.5

Stiffness to Weight: Bending, points		20
Stiffness to Weight: Bending, points		14

Thermal Diffusivity, mm²/s		11
Thermal Diffusivity, mm²/s		180

C63020 Bronze vs. ASTM B631 Class A

Mechanical Properties

Thermal Properties

Otherwise Unclassified Properties

Common Calculations

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