Commercially Pure Zirconium vs. SAE-AISI D7 Steel

Commercially pure 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 (11, in this case) are not shown.

For each property being compared, the top bar is commercially pure zirconium and the bottom bar is SAE-AISI D7 steel.

Commercially Pure (Unalloyed, R60702) Zirconium SAE-AISI D7 (T30407) Chromium Cold-Work Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		98
Elastic (Young's, Tensile) Modulus, GPa		190

Poisson's Ratio		0.34
Poisson's Ratio		0.28

Shear Modulus, GPa		36
Shear Modulus, GPa		73

Tensile Strength: Ultimate (UTS), MPa		430
Tensile Strength: Ultimate (UTS), MPa		800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		270

Specific Heat Capacity, J/kg-K		270
Specific Heat Capacity, J/kg-K		480

Thermal Conductivity, W/m-K		22
Thermal Conductivity, W/m-K		27

Thermal Expansion, µm/m-K		5.5
Thermal Expansion, µm/m-K		11

Otherwise Unclassified Properties

Density, g/cm³		6.7
Density, g/cm³		7.6

Embodied Water, L/kg		450
Embodied Water, L/kg		130

Common Calculations

Stiffness to Weight: Axial, points		8.1
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		18
Strength to Weight: Axial, points		29 to 78

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		25 to 48

Thermal Diffusivity, mm²/s		12
Thermal Diffusivity, mm²/s		7.4

Thermal Shock Resistance, points		56
Thermal Shock Resistance, points		27 to 72

Alloy Composition

Carbon (C), %		0 to 0.050
Carbon (C), %		2.2 to 2.5

Chromium (Cr), %		0 to 0.2
Chromium (Cr), %		11.5 to 13.5

Copper (Cu), %		0
Copper (Cu), %		0 to 0.25

Hafnium (Hf), %		0 to 4.5
Hafnium (Hf), %		0

Hydrogen (H), %		0 to 0.0050
Hydrogen (H), %		0

Iron (Fe), %		0 to 0.2
Iron (Fe), %		76.6 to 81.9

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.6

Molybdenum (Mo), %		0
Molybdenum (Mo), %		0.7 to 1.2

Nickel (Ni), %		0
Nickel (Ni), %		0 to 0.3

Nitrogen (N), %		0 to 0.025
Nitrogen (N), %		0

Oxygen (O), %		0 to 0.16
Oxygen (O), %		0

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0
Silicon (Si), %		0 to 0.6

Sulfur (S), %		0
Sulfur (S), %		0 to 0.030

Vanadium (V), %		0
Vanadium (V), %		3.8 to 4.4

Zirconium (Zr), %		94.7 to 100
Zirconium (Zr), %		0