Grade 365 Molybdenum vs. ASTM B541 Gold

Both grade 365 molybdenum and ASTM B541 gold are otherwise unclassified metals. There are 17 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 365 molybdenum and the bottom bar is ASTM B541 gold.

Grade 365 Molybdenum ASTM B541 Gold Electrical Contact Alloy

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		310
Elastic (Young's, Tensile) Modulus, GPa		110

Elongation at Break, %		6.3
Elongation at Break, %		6.0 to 14

Poisson's Ratio		0.31
Poisson's Ratio		0.4

Shear Modulus, GPa		120
Shear Modulus, GPa		38

Tensile Strength: Ultimate (UTS), MPa		620
Tensile Strength: Ultimate (UTS), MPa		670 to 1180

Tensile Strength: Yield (Proof), MPa		530
Tensile Strength: Yield (Proof), MPa		480 to 900

Thermal Properties

Latent Heat of Fusion, J/g		370
Latent Heat of Fusion, J/g		90

Specific Heat Capacity, J/kg-K		250
Specific Heat Capacity, J/kg-K		170

Thermal Expansion, µm/m-K		7.0
Thermal Expansion, µm/m-K		13

Otherwise Unclassified Properties

Density, g/cm³		10
Density, g/cm³		17

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		37
Resilience: Ultimate (Unit Rupture Work), MJ/m³		65 to 91

Resilience: Unit (Modulus of Resilience), kJ/m³		450
Resilience: Unit (Modulus of Resilience), kJ/m³		1090 to 3830

Stiffness to Weight: Axial, points		17
Stiffness to Weight: Axial, points		3.4

Stiffness to Weight: Bending, points		22
Stiffness to Weight: Bending, points		9.0

Strength to Weight: Axial, points		17
Strength to Weight: Axial, points		11 to 19

Strength to Weight: Bending, points		16
Strength to Weight: Bending, points		9.8 to 14

Thermal Shock Resistance, points		21
Thermal Shock Resistance, points		36 to 63

Alloy Composition

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Carbon (C), %		0 to 0.010
Carbon (C), %		0

Copper (Cu), %		0
Copper (Cu), %		13.5 to 15.5

Gold (Au), %		0
Gold (Au), %		70.5 to 72.5

Iron (Fe), %		0 to 0.010
Iron (Fe), %		0

Molybdenum (Mo), %		99.9 to 100
Molybdenum (Mo), %		0

Nickel (Ni), %		0 to 0.0020
Nickel (Ni), %		0

Nitrogen (N), %		0 to 0.0020
Nitrogen (N), %		0

Oxygen (O), %		0 to 0.0015
Oxygen (O), %		0

Platinum (Pt), %		0
Platinum (Pt), %		8.0 to 9.0

Silicon (Si), %		0 to 0.010
Silicon (Si), %		0

Silver (Ag), %		0
Silver (Ag), %		4.0 to 5.0

Zinc (Zn), %		0
Zinc (Zn), %		0.7 to 1.3

Residuals, %		0
Residuals, %		0 to 0.4