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SAE-AISI 1021 Steel vs. Grade 361 Molybdenum

SAE-AISI 1021 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 SAE-AISI 1021 steel and the bottom bar is grade 361 molybdenum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
310
Elongation at Break, % 17 to 27
6.3
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
120
Tensile Strength: Ultimate (UTS), MPa 480 to 530
620
Tensile Strength: Yield (Proof), MPa 260 to 450
530

Thermal Properties

Latent Heat of Fusion, J/g 250
370
Specific Heat Capacity, J/kg-K 470
250
Thermal Expansion, µm/m-K 12
7.0

Otherwise Unclassified Properties

Density, g/cm3 7.9
10
Embodied Carbon, kg CO2/kg material 1.4
28
Embodied Energy, MJ/kg 18
330
Embodied Water, L/kg 46
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 84 to 110
37
Resilience: Unit (Modulus of Resilience), kJ/m3 180 to 530
450
Stiffness to Weight: Axial, points 13
17
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 17 to 19
17
Strength to Weight: Bending, points 17 to 18
16
Thermal Shock Resistance, points 15 to 17
21

Alloy Composition

Carbon (C), % 0.18 to 0.23
0 to 0.010
Iron (Fe), % 98.8 to 99.22
0 to 0.010
Manganese (Mn), % 0.6 to 0.9
0
Molybdenum (Mo), % 0
99.9 to 100
Nickel (Ni), % 0
0 to 0.0050
Nitrogen (N), % 0
0 to 0.0020
Oxygen (O), % 0
0 to 0.0070
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.010
Sulfur (S), % 0 to 0.050
0