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Grade 705C Zirconium vs. SAE-AISI A9 Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while SAE-AISI A9 steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (14, 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 A9 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
74
Tensile Strength: Ultimate (UTS), MPa 540
770 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Specific Heat Capacity, J/kg-K 270
470
Thermal Conductivity, W/m-K 18
35
Thermal Expansion, µm/m-K 5.7
12

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
82

Common Calculations

Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
28 to 73
Strength to Weight: Bending, points 22
24 to 46
Thermal Diffusivity, mm2/s 9.9
9.6
Thermal Shock Resistance, points 69
25 to 66

Alloy Composition

Carbon (C), % 0 to 0.1
0.45 to 0.55
Chromium (Cr), % 0
4.8 to 5.5
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
87 to 90.5
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
1.3 to 1.8
Nickel (Ni), % 0
1.3 to 1.8
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
1.0 to 1.2
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.8 to 1.4
Zirconium (Zr), % 91.9 to 98
0