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S31730 Stainless Steel vs. Grade 360 Molybdenum

S31730 stainless steel belongs to the iron alloys classification, while grade 360 molybdenum belongs to the otherwise unclassified metals. There are 20 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 S31730 stainless steel and the bottom bar is grade 360 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
310
Elongation at Break, % 40
6.3 to 17
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
120
Tensile Strength: Ultimate (UTS), MPa 540
430 to 620
Tensile Strength: Yield (Proof), MPa 200
270 to 530

Thermal Properties

Latent Heat of Fusion, J/g 290
370
Specific Heat Capacity, J/kg-K 470
250
Thermal Expansion, µm/m-K 16
7.0

Otherwise Unclassified Properties

Density, g/cm3 8.0
10
Embodied Carbon, kg CO2/kg material 4.6
28
Embodied Energy, MJ/kg 63
330
Embodied Water, L/kg 180
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
37 to 64
Resilience: Unit (Modulus of Resilience), kJ/m3 99
120 to 450
Stiffness to Weight: Axial, points 14
17
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 19
12 to 17
Strength to Weight: Bending, points 18
12 to 16
Thermal Shock Resistance, points 12
14 to 21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 4.0 to 5.0
0
Iron (Fe), % 52.4 to 61
0 to 0.010
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 3.0 to 4.0
99.9 to 100
Nickel (Ni), % 15 to 16.5
0 to 0.0020
Nitrogen (N), % 0 to 0.045
0 to 0.0020
Oxygen (O), % 0
0 to 0.0015
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0 to 0.010
Sulfur (S), % 0 to 0.010
0