R05200 Tantalum vs. ASTM B631 Class C

Both R05200 tantalum and ASTM B631 class C 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.

For each property being compared, the top bar is R05200 tantalum and the bottom bar is ASTM B631 class C.

UNS R05200 Cast Unalloyed Tantalum ASTM B631 Class C Silver-Tungsten Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		180 to 190

Poisson's Ratio		0.34
Poisson's Ratio		0.32

Shear Modulus, GPa		69
Shear Modulus, GPa		66 to 71

Thermal Properties

Latent Heat of Fusion, J/g		140
Latent Heat of Fusion, J/g		140 to 150

Specific Heat Capacity, J/kg-K		140
Specific Heat Capacity, J/kg-K		180

Thermal Conductivity, W/m-K		59
Thermal Conductivity, W/m-K		450 to 490

Thermal Expansion, µm/m-K		6.5
Thermal Expansion, µm/m-K		14

Otherwise Unclassified Properties

Density, g/cm³		17
Density, g/cm³		13 to 14

Common Calculations

Stiffness to Weight: Axial, points		6.2
Stiffness to Weight: Axial, points		7.4 to 7.6

Stiffness to Weight: Bending, points		11
Stiffness to Weight: Bending, points		14

Thermal Diffusivity, mm²/s		25
Thermal Diffusivity, mm²/s		180 to 200

R05200 Tantalum vs. ASTM B631 Class C

Mechanical Properties

Thermal Properties

Otherwise Unclassified Properties

Common Calculations

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