ASTM Grade HH Steel vs. R60802 Alloy

ASTM grade HH 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 (12, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HH steel and the bottom bar is R60802 alloy.

ASTM Grade HH (25Cr-12Ni, J93503) Cast 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, %		11
Elongation at Break, %		22

Poisson's Ratio		0.27
Poisson's Ratio		0.34

Shear Modulus, GPa		79
Shear Modulus, GPa		36

Tensile Strength: Ultimate (UTS), MPa		580
Tensile Strength: Ultimate (UTS), MPa		430

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

Thermal Properties

Latent Heat of Fusion, J/g		310
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		14
Thermal Conductivity, W/m-K		22

Thermal Expansion, µm/m-K		17
Thermal Expansion, µm/m-K		6.0

Otherwise Unclassified Properties

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

Embodied Water, L/kg		180
Embodied Water, L/kg		290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		53
Resilience: Ultimate (Unit Rupture Work), MJ/m³		85

Resilience: Unit (Modulus of Resilience), kJ/m³		190
Resilience: Unit (Modulus of Resilience), kJ/m³		380

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		21
Strength to Weight: Axial, points		18

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		19

Thermal Diffusivity, mm²/s		3.8
Thermal Diffusivity, mm²/s		12

Thermal Shock Resistance, points		12
Thermal Shock Resistance, points		53

Alloy Composition

Carbon (C), %		0.2 to 0.5
Carbon (C), %		0

Chromium (Cr), %		24 to 28
Chromium (Cr), %		0.050 to 0.15

Iron (Fe), %		52.9 to 64.8
Iron (Fe), %		0.070 to 0.2

Manganese (Mn), %		0 to 2.0
Manganese (Mn), %		0

Molybdenum (Mo), %		0 to 0.5
Molybdenum (Mo), %		0

Nickel (Ni), %		11 to 14
Nickel (Ni), %		0.030 to 0.080

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

Silicon (Si), %		0 to 2.0
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