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WE43B Magnesium vs. C87900 Brass

WE43B magnesium belongs to the magnesium alloys classification, while C87900 brass belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is WE43B magnesium and the bottom bar is C87900 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.2
25
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
41
Tensile Strength: Ultimate (UTS), MPa 250
480
Tensile Strength: Yield (Proof), MPa 200
240

Thermal Properties

Latent Heat of Fusion, J/g 330
190
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 640
930
Melting Onset (Solidus), °C 550
900
Specific Heat Capacity, J/kg-K 960
390
Thermal Conductivity, W/m-K 51
120
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
15
Electrical Conductivity: Equal Weight (Specific), % IACS 53
17

Otherwise Unclassified Properties

Base Metal Price, % relative 34
24
Density, g/cm3 1.9
8.1
Embodied Carbon, kg CO2/kg material 28
2.7
Embodied Energy, MJ/kg 250
46
Embodied Water, L/kg 910
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
100
Resilience: Unit (Modulus of Resilience), kJ/m3 430
270
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 61
20
Strength to Weight: Axial, points 36
17
Strength to Weight: Bending, points 46
17
Thermal Diffusivity, mm2/s 28
37
Thermal Shock Resistance, points 15
16

Alloy Composition

Aluminum (Al), % 0
0 to 0.15
Antimony (Sb), % 0
0 to 0.050
Arsenic (As), % 0
0 to 0.050
Copper (Cu), % 0 to 0.020
63 to 69.2
Iron (Fe), % 0 to 0.010
0 to 0.4
Lead (Pb), % 0
0 to 0.25
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
0 to 0.15
Nickel (Ni), % 0 to 0.0050
0 to 0.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0.8 to 1.2
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
0 to 0.25
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
30 to 36
Zirconium (Zr), % 0.4 to 1.0
0