Grade 704C Zirconium vs. EN 1.5408 Steel

Grade 704C zirconium belongs to the otherwise unclassified metals classification, while EN 1.5408 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is grade 704C zirconium and the bottom bar is EN 1.5408 steel.

Grade 704C Cast Zirconium EN 1.5408 (30MoB1) Boron Steel

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness		210
Brinell Hardness		140 to 160

Elastic (Young's, Tensile) Modulus, GPa		97
Elastic (Young's, Tensile) Modulus, GPa		190

Poisson's Ratio		0.34
Poisson's Ratio		0.29

Shear Modulus, GPa		36
Shear Modulus, GPa		73

Tensile Strength: Ultimate (UTS), MPa		470
Tensile Strength: Ultimate (UTS), MPa		460 to 1620

Thermal Properties

Latent Heat of Fusion, J/g		240
Latent Heat of Fusion, J/g		250

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

Thermal Conductivity, W/m-K		21
Thermal Conductivity, W/m-K		48

Thermal Expansion, µm/m-K		5.9
Thermal Expansion, µm/m-K		13

Otherwise Unclassified Properties

Density, g/cm³		6.7
Density, g/cm³		7.8

Embodied Water, L/kg		460
Embodied Water, L/kg		48

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		24

Strength to Weight: Axial, points		20
Strength to Weight: Axial, points		16 to 57

Strength to Weight: Bending, points		20
Strength to Weight: Bending, points		17 to 39

Thermal Diffusivity, mm²/s		12
Thermal Diffusivity, mm²/s		13

Thermal Shock Resistance, points		58
Thermal Shock Resistance, points		13 to 48

Alloy Composition

Boron (B), %		0
Boron (B), %		0.00080 to 0.0050

Carbon (C), %		0 to 0.1
Carbon (C), %		0.28 to 0.32

Chromium (Cr), %		0
Chromium (Cr), %		0 to 0.3

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), %		97.7 to 98.8

Manganese (Mn), %		0
Manganese (Mn), %		0.8 to 1.0

Molybdenum (Mo), %		0
Molybdenum (Mo), %		0.080 to 0.12

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 0.025

Silicon (Si), %		0
Silicon (Si), %		0 to 0.3

Sulfur (S), %		0
Sulfur (S), %		0 to 0.025

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

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