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Grade 361 Molybdenum vs. S45503 Stainless Steel

Grade 361 molybdenum belongs to the otherwise unclassified metals classification, while S45503 stainless steel belongs to the iron alloys. There are 19 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 361 molybdenum and the bottom bar is S45503 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 310
190
Elongation at Break, % 6.3
4.6 to 6.8
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 120
75
Tensile Strength: Ultimate (UTS), MPa 620
1610 to 1850
Tensile Strength: Yield (Proof), MPa 530
1430 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 370
270
Specific Heat Capacity, J/kg-K 250
470
Thermal Expansion, µm/m-K 7.0
11

Otherwise Unclassified Properties

Density, g/cm3 10
7.9
Embodied Carbon, kg CO2/kg material 28
3.4
Embodied Energy, MJ/kg 330
48
Embodied Water, L/kg 360
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37
82 to 110
Stiffness to Weight: Axial, points 17
14
Stiffness to Weight: Bending, points 22
24
Strength to Weight: Axial, points 17
57 to 65
Strength to Weight: Bending, points 16
39 to 43
Thermal Shock Resistance, points 21
56 to 64

Alloy Composition

Carbon (C), % 0 to 0.010
0 to 0.010
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 0
1.5 to 2.5
Iron (Fe), % 0 to 0.010
72.4 to 78.9
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 99.9 to 100
0 to 0.5
Nickel (Ni), % 0 to 0.0050
7.5 to 9.5
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0070
0
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.010
0 to 0.2
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.4