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ASTM B631 Class C vs. Grade 705C Zirconium

Both ASTM B631 class C and grade 705C zirconium are otherwise unclassified metals. There are 12 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 ASTM B631 class C and the bottom bar is grade 705C zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180 to 190
98
Poisson's Ratio 0.32
0.34
Rockwell B Hardness 43 to 68
87
Shear Modulus, GPa 66 to 71
36

Thermal Properties

Latent Heat of Fusion, J/g 140 to 150
250
Specific Heat Capacity, J/kg-K 180
270
Thermal Conductivity, W/m-K 450 to 490
18
Thermal Expansion, µm/m-K 14
5.7

Otherwise Unclassified Properties

Density, g/cm3 13 to 14
6.7

Common Calculations

Stiffness to Weight: Axial, points 7.4 to 7.6
8.1
Stiffness to Weight: Bending, points 14
23
Thermal Diffusivity, mm2/s 180 to 200
9.9