R60706 Alloy vs. SAE-AISI A8 Steel

R60706 alloy belongs to the otherwise unclassified metals classification, while SAE-AISI A8 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 R60706 alloy and the bottom bar is SAE-AISI A8 steel.

UNS R60706 Zirconium-Niobium Alloy SAE-AISI A8 (T30108) Air-Hardening 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		0.29

Shear Modulus, GPa		37
Shear Modulus, GPa		74

Tensile Strength: Ultimate (UTS), MPa		580
Tensile Strength: Ultimate (UTS), MPa		700 to 1920

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		470

Thermal Conductivity, W/m-K		17
Thermal Conductivity, W/m-K		37

Thermal Expansion, µm/m-K		6.3
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Density, g/cm³		6.7
Density, g/cm³		7.9

Embodied Water, L/kg		450
Embodied Water, L/kg		73

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		24

Strength to Weight: Axial, points		24
Strength to Weight: Axial, points		25 to 68

Strength to Weight: Bending, points		23
Strength to Weight: Bending, points		22 to 44

Thermal Diffusivity, mm²/s		9.5
Thermal Diffusivity, mm²/s		9.9

Thermal Shock Resistance, points		67
Thermal Shock Resistance, points		22 to 62

Alloy Composition

Carbon (C), %		0 to 0.050
Carbon (C), %		0.5 to 0.6

Chromium (Cr), %		0 to 0.2
Chromium (Cr), %		4.8 to 5.5

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), %		88.5 to 91.9

Manganese (Mn), %		0
Manganese (Mn), %		0 to 0.5

Molybdenum (Mo), %		0
Molybdenum (Mo), %		1.2 to 1.7

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

Niobium (Nb), %		2.0 to 3.0
Niobium (Nb), %		0

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), %		0.75 to 1.1

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

Tungsten (W), %		0
Tungsten (W), %		1.0 to 1.5

Zirconium (Zr), %		91 to 98
Zirconium (Zr), %		0