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ASTM A387 Grade 11 Steel vs. Grade 361 Molybdenum

ASTM A387 grade 11 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 ASTM A387 grade 11 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, % 25
6.3
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 73
120
Tensile Strength: Ultimate (UTS), MPa 500 to 600
620
Tensile Strength: Yield (Proof), MPa 270 to 350
530

Thermal Properties

Latent Heat of Fusion, J/g 260
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 1.6
28
Embodied Energy, MJ/kg 21
330
Embodied Water, L/kg 53
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 130
37
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 320
450
Stiffness to Weight: Axial, points 13
17
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 18 to 21
17
Strength to Weight: Bending, points 18 to 20
16
Thermal Shock Resistance, points 15 to 18
21

Alloy Composition

Carbon (C), % 0.050 to 0.17
0 to 0.010
Chromium (Cr), % 1.0 to 1.5
0
Iron (Fe), % 96.2 to 97.6
0 to 0.010
Manganese (Mn), % 0.4 to 0.65
0
Molybdenum (Mo), % 0.45 to 0.65
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 0.025
0
Silicon (Si), % 0.5 to 0.8
0 to 0.010
Sulfur (S), % 0 to 0.025
0