AISI 440A Stainless Steel vs. R60802 Alloy

AISI 440A stainless steel belongs to the iron alloys classification, while R60802 alloy belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AISI 440A stainless steel and the bottom bar is R60802 alloy.

AISI 440A (S44002) Stainless Steel UNS R60802 Zirconium-Tin Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		200
Elastic (Young's, Tensile) Modulus, GPa		98

Elongation at Break, %		5.0 to 20
Elongation at Break, %		22

Poisson's Ratio		0.28
Poisson's Ratio		0.34

Shear Modulus, GPa		77
Shear Modulus, GPa		36

Tensile Strength: Ultimate (UTS), MPa		730 to 1790
Tensile Strength: Ultimate (UTS), MPa		430

Tensile Strength: Yield (Proof), MPa		420 to 1650
Tensile Strength: Yield (Proof), MPa		270

Thermal Properties

Latent Heat of Fusion, J/g		280
Latent Heat of Fusion, J/g		250

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

Thermal Conductivity, W/m-K		23
Thermal Conductivity, W/m-K		22

Thermal Expansion, µm/m-K		10
Thermal Expansion, µm/m-K		6.0

Otherwise Unclassified Properties

Density, g/cm³		7.7
Density, g/cm³		6.5

Embodied Water, L/kg		120
Embodied Water, L/kg		290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		87 to 120
Resilience: Ultimate (Unit Rupture Work), MJ/m³		85

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		8.3

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

Strength to Weight: Axial, points		26 to 65
Strength to Weight: Axial, points		18

Strength to Weight: Bending, points		23 to 43
Strength to Weight: Bending, points		19

Thermal Diffusivity, mm²/s		6.2
Thermal Diffusivity, mm²/s		12

Thermal Shock Resistance, points		26 to 65
Thermal Shock Resistance, points		53

Alloy Composition

Carbon (C), %		0.6 to 0.75
Carbon (C), %		0

Chromium (Cr), %		16 to 18
Chromium (Cr), %		0.050 to 0.15

Iron (Fe), %		78.4 to 83.4
Iron (Fe), %		0.070 to 0.2

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		0

Molybdenum (Mo), %		0 to 0.75
Molybdenum (Mo), %		0

Nickel (Ni), %		0
Nickel (Ni), %		0.030 to 0.080

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

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0

Sulfur (S), %		0 to 0.015
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