SAE-AISI 4718 Steel vs. R60802 Alloy

SAE-AISI 4718 steel belongs to the iron alloys classification, while R60802 alloy belongs to the otherwise unclassified metals. There are 20 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 SAE-AISI 4718 steel and the bottom bar is R60802 alloy.

SAE-AISI 4718 (G47180) Ni-Cr-Mo Steel UNS R60802 Zirconium-Tin Alloy

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		24
Elongation at Break, %		22

Poisson's Ratio		0.29
Poisson's Ratio		0.34

Shear Modulus, GPa		73
Shear Modulus, GPa		36

Tensile Strength: Ultimate (UTS), MPa		510
Tensile Strength: Ultimate (UTS), MPa		430

Tensile Strength: Yield (Proof), MPa		370
Tensile Strength: Yield (Proof), MPa		270

Thermal Properties

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

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

Thermal Conductivity, W/m-K		39
Thermal Conductivity, W/m-K		22

Thermal Expansion, µm/m-K		11
Thermal Expansion, µm/m-K		6.0

Otherwise Unclassified Properties

Density, g/cm³		7.9
Density, g/cm³		6.5

Embodied Water, L/kg		51
Embodied Water, L/kg		290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		110
Resilience: Ultimate (Unit Rupture Work), MJ/m³		85

Resilience: Unit (Modulus of Resilience), kJ/m³		360
Resilience: Unit (Modulus of Resilience), kJ/m³		380

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		8.3

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

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

Strength to Weight: Bending, points		18
Strength to Weight: Bending, points		19

Thermal Diffusivity, mm²/s		10
Thermal Diffusivity, mm²/s		12

Thermal Shock Resistance, points		17
Thermal Shock Resistance, points		53

Alloy Composition

Carbon (C), %		0.16 to 0.21
Carbon (C), %		0

Chromium (Cr), %		0.35 to 0.55
Chromium (Cr), %		0.050 to 0.15

Iron (Fe), %		96.3 to 97.4
Iron (Fe), %		0.070 to 0.2

Manganese (Mn), %		0.7 to 0.9
Manganese (Mn), %		0

Molybdenum (Mo), %		0.3 to 0.4
Molybdenum (Mo), %		0

Nickel (Ni), %		0.9 to 1.2
Nickel (Ni), %		0.030 to 0.080

Phosphorus (P), %		0 to 0.035
Phosphorus (P), %		0

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

Sulfur (S), %		0 to 0.040
Sulfur (S), %		0

Tin (Sn), %		0
Tin (Sn), %		1.2 to 1.7

Zirconium (Zr), %		0
Zirconium (Zr), %		97.8 to 98.7

Residuals, %		0
Residuals, %		0 to 0.11