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Class 1 Tungsten vs. SAE-AISI M6 Steel

Class 1 tungsten belongs to the otherwise unclassified metals classification, while SAE-AISI M6 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 1 tungsten and the bottom bar is SAE-AISI M6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 250
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 98
77
Tensile Strength: Ultimate (UTS), MPa 860
840 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 160
260
Specific Heat Capacity, J/kg-K 120
440
Thermal Conductivity, W/m-K 21
17
Thermal Expansion, µm/m-K 5.1
12

Otherwise Unclassified Properties

Density, g/cm3 15
8.4
Embodied Carbon, kg CO2/kg material 22
8.0
Embodied Energy, MJ/kg 340
120
Embodied Water, L/kg 140
160

Common Calculations

Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
23
Strength to Weight: Axial, points 16
28 to 73
Strength to Weight: Bending, points 14
24 to 45
Thermal Diffusivity, mm2/s 12
4.7
Thermal Shock Resistance, points 48
26 to 68

Alloy Composition

Carbon (C), % 0
0.75 to 0.85
Chromium (Cr), % 0
3.8 to 4.5
Cobalt (Co), % 0
11 to 13
Iron (Fe), % 0
68.8 to 74.6
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
4.5 to 5.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.45
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 90
3.8 to 4.8
Vanadium (V), % 0
1.3 to 1.7
Residuals, % 10
0