R60705 Alloy vs. SAE-AISI H42 Steel

R60705 alloy belongs to the otherwise unclassified metals classification, while SAE-AISI H42 steel belongs to the iron alloys. There are 16 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 R60705 alloy and the bottom bar is SAE-AISI H42 steel.

UNS R60705 Zirconium-Niobium Alloy SAE-AISI H42 (T20842) Molybdenum Hot-Work Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.34
Poisson's Ratio		0.29

Shear Modulus, GPa		37
Shear Modulus, GPa		77

Tensile Strength: Ultimate (UTS), MPa		540
Tensile Strength: Ultimate (UTS), MPa		700 to 1980

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		260

Specific Heat Capacity, J/kg-K		270
Specific Heat Capacity, J/kg-K		440

Thermal Conductivity, W/m-K		17
Thermal Conductivity, W/m-K		24

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

Otherwise Unclassified Properties

Density, g/cm³		6.7
Density, g/cm³		8.4

Embodied Water, L/kg		450
Embodied Water, L/kg		98

Common Calculations

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

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

Strength to Weight: Axial, points		22
Strength to Weight: Axial, points		23 to 65

Strength to Weight: Bending, points		22
Strength to Weight: Bending, points		21 to 42

Thermal Diffusivity, mm²/s		9.5
Thermal Diffusivity, mm²/s		6.5

Thermal Shock Resistance, points		63
Thermal Shock Resistance, points		20 to 57

Alloy Composition

Carbon (C), %		0 to 0.050
Carbon (C), %		0.55 to 0.7

Chromium (Cr), %		0 to 0.2
Chromium (Cr), %		3.8 to 4.5

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), %		79.3 to 83.8

Manganese (Mn), %		0
Manganese (Mn), %		0.15 to 0.4

Molybdenum (Mo), %		0
Molybdenum (Mo), %		4.5 to 5.5

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 0.18
Oxygen (O), %		0

Phosphorus (P), %		0
Phosphorus (P), %		0 to 0.030

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

Tungsten (W), %		0
Tungsten (W), %		5.5 to 6.8

Vanadium (V), %		0
Vanadium (V), %		1.8 to 2.2

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