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Grade 366 Molybdenum vs. SAE-AISI H14 Steel

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while SAE-AISI H14 steel belongs to the iron alloys. There are 16 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 366 molybdenum and the bottom bar is SAE-AISI H14 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
190
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 120
75
Tensile Strength: Ultimate (UTS), MPa 580
710 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 310
270
Specific Heat Capacity, J/kg-K 210
460
Thermal Expansion, µm/m-K 7.6
11

Otherwise Unclassified Properties

Density, g/cm3 12
8.1
Embodied Carbon, kg CO2/kg material 27
2.7
Embodied Energy, MJ/kg 340
39
Embodied Water, L/kg 300
73

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 13
24 to 69
Strength to Weight: Bending, points 13
22 to 44
Thermal Shock Resistance, points 18
24 to 68

Alloy Composition

Carbon (C), % 0 to 0.030
0.35 to 0.45
Chromium (Cr), % 0
4.8 to 5.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 0 to 0.010
86.5 to 89.9
Manganese (Mn), % 0
0.2 to 0.5
Molybdenum (Mo), % 66.9 to 73
0
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0025
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.010
0.8 to 1.2
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 27 to 33
4.0 to 5.3