Grade 704C Zirconium vs. SAE-AISI H42 Steel

Grade 704C zirconium 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 (12, in this case) are not shown.

For each property being compared, the top bar is grade 704C zirconium and the bottom bar is SAE-AISI H42 steel.

Grade 704C Cast Zirconium SAE-AISI H42 (T20842) Molybdenum Hot-Work Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		97
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.34
Poisson's Ratio		0.29

Shear Modulus, GPa		36
Shear Modulus, GPa		77

Tensile Strength: Ultimate (UTS), MPa		470
Tensile Strength: Ultimate (UTS), MPa		700 to 1980

Thermal Properties

Latent Heat of Fusion, J/g		240
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		21
Thermal Conductivity, W/m-K		24

Thermal Expansion, µm/m-K		5.9
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

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

Embodied Water, L/kg		460
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		20
Strength to Weight: Axial, points		23 to 65

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		21 to 42

Thermal Diffusivity, mm²/s		12
Thermal Diffusivity, mm²/s		6.5

Thermal Shock Resistance, points		58
Thermal Shock Resistance, points		20 to 57

Alloy Composition

Carbon (C), %		0 to 0.1
Carbon (C), %		0.55 to 0.7

Chromium (Cr), %		0
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 0.3
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

Nitrogen (N), %		0 to 0.030
Nitrogen (N), %		0

Oxygen (O), %		0 to 0.3
Oxygen (O), %		0

Phosphorus (P), %		0 to 0.010
Phosphorus (P), %		0 to 0.030

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

Tin (Sn), %		1.0 to 2.0
Tin (Sn), %		0

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

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

Zirconium (Zr), %		92.9 to 99
Zirconium (Zr), %		0