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Grade 705C Zirconium vs. SAE-AISI O2 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while SAE-AISI O2 steel belongs to the iron alloys. There are 16 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 705C zirconium and the bottom bar is SAE-AISI O2 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 36
72
Tensile Strength: Ultimate (UTS), MPa 540
640 to 2050

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
43
Thermal Expansion, µm/m-K 5.7
11

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
50

Common Calculations

Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 22
23 to 73
Strength to Weight: Bending, points 22
21 to 46
Thermal Diffusivity, mm2/s 9.9
12
Thermal Shock Resistance, points 69
22 to 70

Alloy Composition

Carbon (C), % 0 to 0.1
0.85 to 1.0
Chromium (Cr), % 0
0 to 0.5
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 0.3
95 to 97.8
Manganese (Mn), % 0
1.4 to 1.8
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0
0 to 0.3
Niobium (Nb), % 2.0 to 3.0
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.3
Zirconium (Zr), % 91.9 to 98
0