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AISI 304 Stainless Steel vs. Grade 364 Molybdenum

AISI 304 stainless steel belongs to the iron alloys classification, while grade 364 molybdenum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AISI 304 stainless steel and the bottom bar is grade 364 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
310
Elongation at Break, % 8.0 to 43
6.2 to 11
Poisson's Ratio 0.28
0.31
Shear Modulus, GPa 77
120
Tensile Strength: Ultimate (UTS), MPa 580 to 1180
580 to 720
Tensile Strength: Yield (Proof), MPa 230 to 860
350 to 620

Thermal Properties

Latent Heat of Fusion, J/g 290
370
Specific Heat Capacity, J/kg-K 480
250
Thermal Expansion, µm/m-K 17
7.0

Otherwise Unclassified Properties

Density, g/cm3 7.8
10
Embodied Carbon, kg CO2/kg material 3.0
28
Embodied Energy, MJ/kg 43
330
Embodied Water, L/kg 150
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86 to 250
43 to 57
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 1870
200 to 630
Stiffness to Weight: Axial, points 14
17
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 21 to 42
16 to 20
Strength to Weight: Bending, points 20 to 32
15 to 17
Thermal Shock Resistance, points 12 to 25
19 to 24

Alloy Composition

Carbon (C), % 0 to 0.080
0.010 to 0.040
Chromium (Cr), % 18 to 20
0
Iron (Fe), % 66.5 to 74
0 to 0.010
Manganese (Mn), % 0 to 2.0
0
Molybdenum (Mo), % 0
99.2 to 99.5
Nickel (Ni), % 8.0 to 10.5
0 to 0.0050
Nitrogen (N), % 0 to 0.1
0 to 0.0020
Oxygen (O), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 0.75
0 to 0.0050
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
0.4 to 0.55
Zirconium (Zr), % 0
0.060 to 0.12