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Low-oxygen Zirconium vs. SAE-AISI A7 Steel

Low-oxygen zirconium belongs to the otherwise unclassified metals classification, while SAE-AISI A7 steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is low-oxygen zirconium and the bottom bar is SAE-AISI A7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 37
72
Tensile Strength: Ultimate (UTS), MPa 330
800 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 22
37
Thermal Expansion, µm/m-K 5.7
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.7
Embodied Water, L/kg 450
100

Common Calculations

Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 14
29 to 77
Strength to Weight: Bending, points 16
25 to 48
Thermal Diffusivity, mm2/s 12
10
Thermal Shock Resistance, points 42
27 to 72

Alloy Composition

Carbon (C), % 0 to 0.050
2.0 to 2.9
Chromium (Cr), % 0 to 0.2
5.0 to 5.8
Copper (Cu), % 0
0 to 0.25
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
81.4 to 87.7
Manganese (Mn), % 0
0 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.4
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
0.5 to 1.5
Vanadium (V), % 0
3.9 to 5.2
Zirconium (Zr), % 94.7 to 100
0