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Grade 705C Zirconium vs. AWS BVAu-7

Both grade 705C zirconium and AWS BVAu-7 are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. There are 13 material properties with values for both materials. Properties with values for just one material (12, 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 grade 705C zirconium and the bottom bar is AWS BVAu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
130
Poisson's Ratio 0.34
0.38
Shear Modulus, GPa 36
45
Tensile Strength: Ultimate (UTS), MPa 540
200

Thermal Properties

Latent Heat of Fusion, J/g 250
140
Specific Heat Capacity, J/kg-K 270
240
Thermal Expansion, µm/m-K 5.7
13

Otherwise Unclassified Properties

Density, g/cm3 6.7
15

Common Calculations

Stiffness to Weight: Axial, points 8.1
4.7
Stiffness to Weight: Bending, points 23
11
Strength to Weight: Axial, points 22
3.7
Strength to Weight: Bending, points 22
5.1
Thermal Shock Resistance, points 69
8.9

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0 to 0.1
0 to 0.0050
Cobalt (Co), % 0
0 to 0.060
Gold (Au), % 0
49.5 to 50.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
0
Lead (Pb), % 0
0 to 0.0020
Nickel (Ni), % 0
24.5 to 25.5
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Palladium (Pd), % 0
23.9 to 26
Phosphorus (P), % 0 to 0.010
0 to 0.0020
Zinc (Zn), % 0
0 to 0.0010
Zirconium (Zr), % 91.9 to 98
0