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SAE-AISI D7 Steel vs. Grade 364 Molybdenum

SAE-AISI D7 steel belongs to the iron alloys classification, while grade 364 molybdenum belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI D7 steel and the bottom bar is grade 364 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
310
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 73
120
Tensile Strength: Ultimate (UTS), MPa 800 to 2120
580 to 720

Thermal Properties

Latent Heat of Fusion, J/g 270
370
Specific Heat Capacity, J/kg-K 480
250
Thermal Expansion, µm/m-K 11
7.0

Otherwise Unclassified Properties

Density, g/cm3 7.6
10
Embodied Carbon, kg CO2/kg material 11
28
Embodied Energy, MJ/kg 180
330
Embodied Water, L/kg 130
360

Common Calculations

Stiffness to Weight: Axial, points 14
17
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 29 to 78
16 to 20
Strength to Weight: Bending, points 25 to 48
15 to 17
Thermal Shock Resistance, points 27 to 72
19 to 24

Alloy Composition

Carbon (C), % 2.2 to 2.5
0.010 to 0.040
Chromium (Cr), % 11.5 to 13.5
0
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 76.6 to 81.9
0 to 0.010
Manganese (Mn), % 0 to 0.6
0
Molybdenum (Mo), % 0.7 to 1.2
99.2 to 99.5
Nickel (Ni), % 0 to 0.3
0 to 0.0050
Nitrogen (N), % 0
0 to 0.0020
Oxygen (O), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0 to 0.0050
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.4 to 0.55
Vanadium (V), % 3.8 to 4.4
0
Zirconium (Zr), % 0
0.060 to 0.12