Class 1 Tungsten vs. SAE-AISI H14 Steel

Class 1 tungsten belongs to the otherwise unclassified metals classification, while SAE-AISI H14 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is class 1 tungsten and the bottom bar is SAE-AISI H14 steel.

Class 1 Tungsten SAE-AISI H14 (T20814) Chromium Hot-Work Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		250
Elastic (Young's, Tensile) Modulus, GPa		190

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		98
Shear Modulus, GPa		75

Tensile Strength: Ultimate (UTS), MPa		860
Tensile Strength: Ultimate (UTS), MPa		710 to 2030

Thermal Properties

Latent Heat of Fusion, J/g		160
Latent Heat of Fusion, J/g		270

Specific Heat Capacity, J/kg-K		120
Specific Heat Capacity, J/kg-K		460

Thermal Conductivity, W/m-K		21
Thermal Conductivity, W/m-K		35

Thermal Expansion, µm/m-K		5.1
Thermal Expansion, µm/m-K		11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		12
Electrical Conductivity: Equal Volume, % IACS		9.3

Electrical Conductivity: Equal Weight (Specific), % IACS		7.4
Electrical Conductivity: Equal Weight (Specific), % IACS		10

Otherwise Unclassified Properties

Density, g/cm³		15
Density, g/cm³		8.1

Embodied Carbon, kg CO₂/kg material		22
Embodied Carbon, kg CO₂/kg material		2.7

Embodied Energy, MJ/kg		340
Embodied Energy, MJ/kg		39

Embodied Water, L/kg		140
Embodied Water, L/kg		73

Common Calculations

Stiffness to Weight: Axial, points		9.6
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		14
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		16
Strength to Weight: Axial, points		24 to 69

Strength to Weight: Bending, points		14
Strength to Weight: Bending, points		22 to 44

Thermal Diffusivity, mm²/s		12
Thermal Diffusivity, mm²/s		9.3

Thermal Shock Resistance, points		48
Thermal Shock Resistance, points		24 to 68

Alloy Composition

Carbon (C), %		0
Carbon (C), %		0.35 to 0.45

Chromium (Cr), %		0
Chromium (Cr), %		4.8 to 5.5

Copper (Cu), %		0
Copper (Cu), %		0 to 0.25

Iron (Fe), %		0
Iron (Fe), %		86.5 to 89.9

Manganese (Mn), %		0
Manganese (Mn), %		0.2 to 0.5

Nickel (Ni), %		0
Nickel (Ni), %		0 to 0.3

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

Silicon (Si), %		0
Silicon (Si), %		0.8 to 1.2

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

Tungsten (W), %		90
Tungsten (W), %		4.0 to 5.3

Residuals, %		10
Residuals, %		0