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EN 1.4658 Stainless Steel vs. Grade 361 Molybdenum

EN 1.4658 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 (12, in this case) are not shown.

For each property being compared, the top bar is EN 1.4658 stainless steel and the bottom bar is grade 361 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
310
Elongation at Break, % 28
6.3
Poisson's Ratio 0.27
0.31
Shear Modulus, GPa 81
120
Tensile Strength: Ultimate (UTS), MPa 900
620
Tensile Strength: Yield (Proof), MPa 730
530

Thermal Properties

Latent Heat of Fusion, J/g 300
370
Specific Heat Capacity, J/kg-K 470
250
Thermal Expansion, µm/m-K 13
7.0

Otherwise Unclassified Properties

Density, g/cm3 7.8
10
Embodied Carbon, kg CO2/kg material 4.5
28
Embodied Energy, MJ/kg 61
330
Embodied Water, L/kg 200
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
37
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
450
Stiffness to Weight: Axial, points 15
17
Stiffness to Weight: Bending, points 25
22
Strength to Weight: Axial, points 32
17
Strength to Weight: Bending, points 26
16
Thermal Shock Resistance, points 24
21

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.010
Chromium (Cr), % 26 to 29
0
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
0
Iron (Fe), % 50.9 to 63.7
0 to 0.010
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 4.0 to 5.0
99.9 to 100
Nickel (Ni), % 5.5 to 9.5
0 to 0.0050
Nitrogen (N), % 0.3 to 0.5
0 to 0.0020
Oxygen (O), % 0
0 to 0.0070
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 0.5
0 to 0.010
Sulfur (S), % 0 to 0.010
0