Low-oxygen Zirconium vs. ASTM A227 Spring Steel

Low-oxygen zirconium belongs to the otherwise unclassified metals classification, while ASTM A227 spring steel belongs to the iron alloys. There are 19 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 low-oxygen zirconium and the bottom bar is ASTM A227 spring steel.

Low-Oxygen (R60700) Zirconium ASTM A227 Spring Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		23
Elongation at Break, %		12

Poisson's Ratio		0.34
Poisson's Ratio		0.29

Shear Modulus, GPa		37
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		330
Tensile Strength: Ultimate (UTS), MPa		1720 to 2220

Tensile Strength: Yield (Proof), MPa		270
Tensile Strength: Yield (Proof), MPa		1430 to 1850

Thermal Properties

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

Specific Heat Capacity, J/kg-K		270
Specific Heat Capacity, J/kg-K		470

Thermal Conductivity, W/m-K		22
Thermal Conductivity, W/m-K		52

Thermal Expansion, µm/m-K		5.7
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		6.7
Density, g/cm³		7.8

Embodied Water, L/kg		450
Embodied Water, L/kg		46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		70
Resilience: Ultimate (Unit Rupture Work), MJ/m³		200 to 260

Stiffness to Weight: Axial, points		8.1
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		14
Strength to Weight: Axial, points		61 to 79

Strength to Weight: Bending, points		16
Strength to Weight: Bending, points		41 to 48

Thermal Diffusivity, mm²/s		12
Thermal Diffusivity, mm²/s		14

Thermal Shock Resistance, points		42
Thermal Shock Resistance, points		55 to 71

Alloy Composition

Carbon (C), %		0 to 0.050
Carbon (C), %		0.45 to 0.85

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

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), %		97.4 to 99.1

Manganese (Mn), %		0
Manganese (Mn), %		0.3 to 1.3

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

Oxygen (O), %		0 to 0.1
Oxygen (O), %		0

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.040

Silicon (Si), %		0
Silicon (Si), %		0.15 to 0.35

Sulfur (S), %		0
Sulfur (S), %		0 to 0.050

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