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Grade 704C Zirconium vs. ACI-ASTM CB7Cu-2 Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while ACI-ASTM CB7Cu-2 steel belongs to the iron alloys. There are 21 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 grade 704C zirconium and the bottom bar is ACI-ASTM CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
300 to 420
Elastic (Young's, Tensile) Modulus, GPa 97
190
Elongation at Break, % 11
5.7 to 11
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
75
Tensile Strength: Ultimate (UTS), MPa 470
960 to 1350
Tensile Strength: Yield (Proof), MPa 310
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 240
280
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 21
17
Thermal Expansion, µm/m-K 5.9
11

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.8
Embodied Water, L/kg 460
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 48
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 490
1510 to 3600
Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 20
34 to 48
Strength to Weight: Bending, points 20
28 to 35
Thermal Diffusivity, mm2/s 12
4.6
Thermal Shock Resistance, points 58
32 to 45

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.070
Chromium (Cr), % 0
14 to 15.5
Copper (Cu), % 0
2.5 to 3.2
Hafnium (Hf), % 0 to 4.5
0
Hydrogen (H), % 0 to 0.0050
0
Iron (Fe), % 0 to 0.3
73.6 to 79
Manganese (Mn), % 0
0 to 0.7
Nickel (Ni), % 0
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.0 to 2.0
0
Zirconium (Zr), % 92.9 to 99
0