ASTM B631 Class A vs. Low-oxygen Zirconium

Both ASTM B631 class A and low-oxygen zirconium are otherwise unclassified metals. There are 11 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ASTM B631 class A and the bottom bar is low-oxygen zirconium.

Metric UnitsUS Customary Units

Thermal Properties

Latent Heat of Fusion, J/g		160
Latent Heat of Fusion, J/g		250

Specific Heat Capacity, J/kg-K		160
Specific Heat Capacity, J/kg-K		270

Thermal Conductivity, W/m-K		420
Thermal Conductivity, W/m-K		22

Thermal Expansion, µm/m-K		11
Thermal Expansion, µm/m-K		5.7

Common Calculations

Stiffness to Weight: Axial, points		8.5
Stiffness to Weight: Axial, points		8.1

Stiffness to Weight: Bending, points		14
Stiffness to Weight: Bending, points		23

Thermal Diffusivity, mm²/s		180
Thermal Diffusivity, mm²/s		12

Elastic (Young's, Tensile) Modulus, GPa		220
Elastic (Young's, Tensile) Modulus, GPa		98

Poisson's Ratio		0.3
Poisson's Ratio		0.34

Shear Modulus, GPa		85 to 86
Shear Modulus, GPa		37

Density, g/cm³		15
Density, g/cm³		6.7

ASTM B631 Class A vs. Low-oxygen Zirconium

Mechanical Properties

Thermal Properties

Otherwise Unclassified Properties

Common Calculations

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