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Grade 702C Zirconium vs. ASTM B685 Alloy

Both grade 702C zirconium and ASTM B685 alloy are otherwise unclassified metals. There are 13 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is grade 702C zirconium and the bottom bar is ASTM B685 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
120
Poisson's Ratio 0.34
0.37
Shear Modulus, GPa 36
43
Tensile Strength: Ultimate (UTS), MPa 430
660 to 1060

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Specific Heat Capacity, J/kg-K 270
300
Thermal Expansion, µm/m-K 5.7
14

Otherwise Unclassified Properties

Density, g/cm3 6.7
11

Common Calculations

Stiffness to Weight: Axial, points 8.1
6.1
Stiffness to Weight: Bending, points 23
15
Strength to Weight: Axial, points 18
17 to 27
Strength to Weight: Bending, points 19
16 to 21
Thermal Shock Resistance, points 55
28 to 46

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Cadmium (Cd), % 0
0 to 0.050
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
39.5 to 40.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0
59 to 60.5
Phosphorus (P), % 0 to 0.010
0
Silver (Ag), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.060
Zirconium (Zr), % 94.8 to 100
0
Residuals, % 0
0 to 0.2