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Grade 361 Molybdenum vs. ASTM B780 Alloy

Both grade 361 molybdenum and ASTM B780 alloy are otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 361 molybdenum and the bottom bar is ASTM B780 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 310
83
Elongation at Break, % 6.3
1.1 to 9.1
Poisson's Ratio 0.31
0.36
Shear Modulus, GPa 120
30
Tensile Strength: Ultimate (UTS), MPa 620
330 to 590

Thermal Properties

Latent Heat of Fusion, J/g 370
140
Specific Heat Capacity, J/kg-K 250
270
Thermal Expansion, µm/m-K 7.0
18

Otherwise Unclassified Properties

Density, g/cm3 10
10

Common Calculations

Stiffness to Weight: Axial, points 17
4.5
Stiffness to Weight: Bending, points 22
14
Strength to Weight: Axial, points 17
9.1 to 16
Strength to Weight: Bending, points 16
11 to 15
Thermal Shock Resistance, points 21
16 to 29

Alloy Composition

Cadmium (Cd), % 0
0 to 0.050
Carbon (C), % 0 to 0.010
0
Copper (Cu), % 0
23.5 to 25.7
Iron (Fe), % 0 to 0.010
0 to 0.050
Lead (Pb), % 0
0 to 0.030
Molybdenum (Mo), % 99.9 to 100
0
Nickel (Ni), % 0 to 0.0050
0.35 to 0.65
Nitrogen (N), % 0 to 0.0020
0
Oxygen (O), % 0 to 0.0070
0
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 0
74 to 76
Zinc (Zn), % 0
0 to 0.060