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Grade 366 Molybdenum vs. AWS ER80S-Ni3

Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while AWS ER80S-Ni3 belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 366 molybdenum and the bottom bar is AWS ER80S-Ni3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 300
190
Elongation at Break, % 2.2
27
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 120
72
Tensile Strength: Ultimate (UTS), MPa 580
630
Tensile Strength: Yield (Proof), MPa 470
530

Thermal Properties

Latent Heat of Fusion, J/g 310
260
Specific Heat Capacity, J/kg-K 210
470
Thermal Expansion, µm/m-K 7.6
13

Otherwise Unclassified Properties

Density, g/cm3 12
7.8
Embodied Carbon, kg CO2/kg material 27
1.7
Embodied Energy, MJ/kg 340
23
Embodied Water, L/kg 300
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
160
Resilience: Unit (Modulus of Resilience), kJ/m3 370
740
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 13
22
Strength to Weight: Bending, points 13
21
Thermal Shock Resistance, points 18
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.12
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 0 to 0.010
93.2 to 96.6
Manganese (Mn), % 0
0 to 1.3
Molybdenum (Mo), % 66.9 to 73
0
Nickel (Ni), % 0 to 0.0020
3.0 to 3.8
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0025
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0.4 to 0.8
Sulfur (S), % 0
0 to 0.025
Tungsten (W), % 27 to 33
0
Residuals, % 0
0 to 0.5