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SAE-AISI D3 Steel vs. Grade 366 Molybdenum

SAE-AISI D3 steel belongs to the iron alloys classification, while grade 366 molybdenum belongs to the otherwise unclassified metals. There are 19 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 SAE-AISI D3 steel and the bottom bar is grade 366 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
300
Elongation at Break, % 9.8 to 15
2.2
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 74
120
Tensile Strength: Ultimate (UTS), MPa 770 to 2050
580
Tensile Strength: Yield (Proof), MPa 480 to 1550
470

Thermal Properties

Latent Heat of Fusion, J/g 270
310
Specific Heat Capacity, J/kg-K 480
210
Thermal Expansion, µm/m-K 12
7.6

Otherwise Unclassified Properties

Density, g/cm3 7.7
12
Embodied Carbon, kg CO2/kg material 3.2
27
Embodied Energy, MJ/kg 48
340
Embodied Water, L/kg 100
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97 to 180
12
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 28 to 74
13
Strength to Weight: Bending, points 24 to 47
13
Thermal Shock Resistance, points 23 to 63
18

Alloy Composition

Carbon (C), % 2.0 to 2.4
0 to 0.030
Chromium (Cr), % 11 to 13.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 80.3 to 87
0 to 0.010
Manganese (Mn), % 0 to 0.6
0
Molybdenum (Mo), % 0
66.9 to 73
Nickel (Ni), % 0 to 0.3
0 to 0.0020
Nitrogen (N), % 0
0 to 0.0020
Oxygen (O), % 0
0 to 0.0025
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0 to 0.010
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 0 to 1.0
27 to 33
Vanadium (V), % 0 to 1.0
0