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Grade 704C Zirconium vs. SAE-AISI D7 Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while SAE-AISI D7 steel belongs to the iron alloys. There are 16 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 grade 704C zirconium and the bottom bar is SAE-AISI D7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 97
190
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 36
73
Tensile Strength: Ultimate (UTS), MPa 470
800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g 240
270
Specific Heat Capacity, J/kg-K 270
480
Thermal Conductivity, W/m-K 21
27
Thermal Expansion, µm/m-K 5.9
11

Otherwise Unclassified Properties

Density, g/cm3 6.7
7.6
Embodied Water, L/kg 460
130

Common Calculations

Stiffness to Weight: Axial, points 8.1
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 20
29 to 78
Strength to Weight: Bending, points 20
25 to 48
Thermal Diffusivity, mm2/s 12
7.4
Thermal Shock Resistance, points 58
27 to 72

Alloy Composition

Carbon (C), % 0 to 0.1
2.2 to 2.5
Chromium (Cr), % 0
11.5 to 13.5
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
76.6 to 81.9
Manganese (Mn), % 0
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 0
0 to 0.3
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 0.6
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.0 to 2.0
0
Vanadium (V), % 0
3.8 to 4.4
Zirconium (Zr), % 92.9 to 99
0