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S31254 Stainless Steel vs. Grade 361 Molybdenum

S31254 stainless steel belongs to the iron alloys classification, while grade 361 molybdenum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is S31254 stainless steel and the bottom bar is grade 361 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
310
Elongation at Break, % 40
6.3
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 80
120
Tensile Strength: Ultimate (UTS), MPa 720
620
Tensile Strength: Yield (Proof), MPa 330
530

Thermal Properties

Latent Heat of Fusion, J/g 300
370
Specific Heat Capacity, J/kg-K 460
250
Thermal Expansion, µm/m-K 17
7.0

Otherwise Unclassified Properties

Density, g/cm3 8.0
10
Embodied Carbon, kg CO2/kg material 5.5
28
Embodied Energy, MJ/kg 74
330
Embodied Water, L/kg 190
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
37
Resilience: Unit (Modulus of Resilience), kJ/m3 270
450
Stiffness to Weight: Axial, points 14
17
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 25
17
Strength to Weight: Bending, points 22
16
Thermal Shock Resistance, points 15
21

Alloy Composition

Carbon (C), % 0 to 0.020
0 to 0.010
Chromium (Cr), % 19.5 to 20.5
0
Copper (Cu), % 0.5 to 1.0
0
Iron (Fe), % 51.4 to 56.3
0 to 0.010
Manganese (Mn), % 0 to 1.0
0
Molybdenum (Mo), % 6.0 to 6.5
99.9 to 100
Nickel (Ni), % 17.5 to 18.5
0 to 0.0050
Nitrogen (N), % 0.18 to 0.22
0 to 0.0020
Oxygen (O), % 0
0 to 0.0070
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.8
0 to 0.010
Sulfur (S), % 0 to 0.010
0