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Low-oxygen Zirconium vs. SAE-AISI 1021 Steel

Low-oxygen zirconium belongs to the otherwise unclassified metals classification, while SAE-AISI 1021 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, 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 1021 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 23
17 to 27
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 37
73
Tensile Strength: Ultimate (UTS), MPa 330
480 to 530
Tensile Strength: Yield (Proof), MPa 270
260 to 450

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 22
52
Thermal Expansion, µm/m-K 5.7
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.9
Embodied Water, L/kg 450
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
84 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 370
180 to 530
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 14
17 to 19
Strength to Weight: Bending, points 16
17 to 18
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 42
15 to 17

Alloy Composition

Carbon (C), % 0 to 0.050
0.18 to 0.23
Chromium (Cr), % 0 to 0.2
0
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.2
98.8 to 99.22
Manganese (Mn), % 0
0.6 to 0.9
Nitrogen (N), % 0 to 0.025
0
Oxygen (O), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.040
Sulfur (S), % 0
0 to 0.050
Zirconium (Zr), % 94.7 to 100
0