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Class 3 Tungsten vs. SAE-AISI M4 Steel

Class 3 tungsten belongs to the otherwise unclassified metals classification, while SAE-AISI M4 steel belongs to the iron alloys. There are 18 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 class 3 tungsten and the bottom bar is SAE-AISI M4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 100
76
Tensile Strength: Ultimate (UTS), MPa 830
770 to 2150

Thermal Properties

Latent Heat of Fusion, J/g 170
260
Specific Heat Capacity, J/kg-K 120
440
Thermal Conductivity, W/m-K 30
25
Thermal Expansion, µm/m-K 4.5
12

Otherwise Unclassified Properties

Density, g/cm3 15
8.3
Embodied Carbon, kg CO2/kg material 23
14
Embodied Energy, MJ/kg 360
210
Embodied Water, L/kg 150
110

Common Calculations

Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
23
Strength to Weight: Axial, points 15
26 to 72
Strength to Weight: Bending, points 13
23 to 45
Thermal Diffusivity, mm2/s 15
6.9
Thermal Shock Resistance, points 49
24 to 68

Alloy Composition

Carbon (C), % 0
1.3 to 1.4
Chromium (Cr), % 0
3.8 to 4.8
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0
75.9 to 81.4
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
4.3 to 5.5
Nickel (Ni), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 95
5.3 to 6.5
Vanadium (V), % 0
3.8 to 4.5
Residuals, % 5.0
0