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Grade 705C Zirconium vs. ACI-ASTM CA6N Steel

Grade 705C zirconium belongs to the otherwise unclassified metals classification, while ACI-ASTM CA6N steel belongs to the iron alloys. There are 20 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 ACI-ASTM CA6N steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 98
190
Elongation at Break, % 13
17
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
75
Tensile Strength: Ultimate (UTS), MPa 540
1080
Tensile Strength: Yield (Proof), MPa 390
1060

Thermal Properties

Latent Heat of Fusion, J/g 250
280
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 18
23
Thermal Expansion, µm/m-K 5.7
9.9

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 450
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 66
180
Resilience: Unit (Modulus of Resilience), kJ/m3 790
2900
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 22
38
Strength to Weight: Bending, points 22
30
Thermal Diffusivity, mm2/s 9.9
6.1
Thermal Shock Resistance, points 69
40

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.060
Chromium (Cr), % 0
10.5 to 12.5
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
77.9 to 83.5
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
6.0 to 8.0
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 0.020
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Zirconium (Zr), % 91.9 to 98
0