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R60704 Alloy vs. Low-oxygen Zirconium

Both R60704 alloy and low-oxygen zirconium are otherwise unclassified metals. Both are furnished in the annealed condition. They have a very high 98% of their average alloy composition in common.

For each property being compared, the top bar is R60704 alloy and the bottom bar is low-oxygen zirconium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
98
Elongation at Break, % 16
23
Poisson's Ratio 0.34
0.34
Shear Modulus, GPa 36
37
Tensile Strength: Ultimate (UTS), MPa 470
330
Tensile Strength: Yield (Proof), MPa 270
270

Thermal Properties

Latent Heat of Fusion, J/g 240
250
Specific Heat Capacity, J/kg-K 270
270
Thermal Conductivity, W/m-K 22
22
Thermal Expansion, µm/m-K 6.0
5.7

Otherwise Unclassified Properties

Density, g/cm3 6.7
6.7
Embodied Water, L/kg 460
450

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
70
Resilience: Unit (Modulus of Resilience), kJ/m3 370
370
Stiffness to Weight: Axial, points 8.1
8.1
Stiffness to Weight: Bending, points 23
23
Strength to Weight: Axial, points 20
14
Strength to Weight: Bending, points 20
16
Thermal Diffusivity, mm2/s 12
12
Thermal Shock Resistance, points 58
42

Alloy Composition

Carbon (C), % 0 to 0.050
0 to 0.050
Chromium (Cr), % 0.2 to 0.4
0 to 0.2
Hafnium (Hf), % 0 to 4.5
0 to 4.5
Hydrogen (H), % 0 to 0.0050
0 to 0.0050
Iron (Fe), % 0.2 to 0.4
0 to 0.2
Nitrogen (N), % 0 to 0.025
0 to 0.025
Oxygen (O), % 0 to 0.18
0 to 0.1
Tin (Sn), % 1.0 to 2.0
0
Zirconium (Zr), % 93 to 98.8
94.7 to 100