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Grade 704C Zirconium vs. R05255 Alloy

Both grade 704C zirconium and R05255 alloy are otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (2, 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 704C zirconium and the bottom bar is R05255 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
190
Elongation at Break, % 11
20
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 36
70
Tensile Strength: Ultimate (UTS), MPa 470
540
Tensile Strength: Yield (Proof), MPa 310
450

Thermal Properties

Latent Heat of Fusion, J/g 240
140
Specific Heat Capacity, J/kg-K 270
140
Thermal Conductivity, W/m-K 21
59
Thermal Expansion, µm/m-K 5.9
6.6

Otherwise Unclassified Properties

Density, g/cm3 6.7
17
Embodied Water, L/kg 460
630

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
100
Resilience: Unit (Modulus of Resilience), kJ/m3 490
530
Stiffness to Weight: Axial, points 8.1
6.3
Stiffness to Weight: Bending, points 23
11
Strength to Weight: Axial, points 20
9.1
Strength to Weight: Bending, points 20
8.9
Thermal Diffusivity, mm2/s 12
25
Thermal Shock Resistance, points 58
31

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.010
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0 to 0.0015
Iron (Fe), % 0 to 0.3
0 to 0.010
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
0 to 0.010
Niobium (Nb), % 0
0 to 0.5
Nitrogen (N), % 0 to 0.030
0 to 0.010
Oxygen (O), % 0 to 0.3
0 to 0.015
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
95.9 to 98
Tin (Sn), % 1.0 to 2.0
0
Titanium (Ti), % 0
0 to 0.010
Tungsten (W), % 0
2.0 to 3.5
Zirconium (Zr), % 92.9 to 99
0