C21000 Brass vs. Grade 365 Molybdenum

C21000 brass belongs to the copper alloys classification, while grade 365 molybdenum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C21000 brass and the bottom bar is grade 365 molybdenum.

UNS C21000 (CW500L) Gilding Brass Grade 365 Molybdenum

Metric UnitsUS Customary Units

Mechanical Properties

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

Elongation at Break, %		2.9 to 50
Elongation at Break, %		6.3

Poisson's Ratio		0.34
Poisson's Ratio		0.31

Shear Modulus, GPa		43
Shear Modulus, GPa		120

Tensile Strength: Ultimate (UTS), MPa		240 to 450
Tensile Strength: Ultimate (UTS), MPa		620

Tensile Strength: Yield (Proof), MPa		69 to 440
Tensile Strength: Yield (Proof), MPa		530

Thermal Properties

Latent Heat of Fusion, J/g		200
Latent Heat of Fusion, J/g		370

Specific Heat Capacity, J/kg-K		390
Specific Heat Capacity, J/kg-K		250

Thermal Expansion, µm/m-K		18
Thermal Expansion, µm/m-K		7.0

Otherwise Unclassified Properties

Density, g/cm³		8.8
Density, g/cm³		10

Embodied Carbon, kg CO₂/kg material		2.6
Embodied Carbon, kg CO₂/kg material		28

Embodied Energy, MJ/kg		42
Embodied Energy, MJ/kg		330

Embodied Water, L/kg		310
Embodied Water, L/kg		360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		13 to 100
Resilience: Ultimate (Unit Rupture Work), MJ/m³		37

Resilience: Unit (Modulus of Resilience), kJ/m³		21 to 830
Resilience: Unit (Modulus of Resilience), kJ/m³		450

Stiffness to Weight: Axial, points		7.2
Stiffness to Weight: Axial, points		17

Stiffness to Weight: Bending, points		18
Stiffness to Weight: Bending, points		22

Strength to Weight: Axial, points		7.4 to 14
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		9.6 to 15
Strength to Weight: Bending, points		16

Thermal Shock Resistance, points		8.1 to 15
Thermal Shock Resistance, points		21

Alloy Composition

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

Copper (Cu), %		94 to 96
Copper (Cu), %		0

Iron (Fe), %		0 to 0.050
Iron (Fe), %		0 to 0.010

Lead (Pb), %		0 to 0.030
Lead (Pb), %		0

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

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

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

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

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

Zinc (Zn), %		3.7 to 6.0
Zinc (Zn), %		0

Residuals, %		0 to 0.2
Residuals, %		0