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WE43B Magnesium vs. C91700 Bronze

WE43B magnesium belongs to the magnesium alloys classification, while C91700 bronze 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 C91700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.2
13
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
41
Tensile Strength: Ultimate (UTS), MPa 250
330
Tensile Strength: Yield (Proof), MPa 200
170

Thermal Properties

Latent Heat of Fusion, J/g 330
190
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 640
1020
Melting Onset (Solidus), °C 550
850
Specific Heat Capacity, J/kg-K 960
370
Thermal Conductivity, W/m-K 51
71
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
10
Electrical Conductivity: Equal Weight (Specific), % IACS 53
10

Otherwise Unclassified Properties

Base Metal Price, % relative 34
36
Density, g/cm3 1.9
8.7
Embodied Carbon, kg CO2/kg material 28
3.9
Embodied Energy, MJ/kg 250
63
Embodied Water, L/kg 910
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
35
Resilience: Unit (Modulus of Resilience), kJ/m3 430
140
Stiffness to Weight: Axial, points 13
6.9
Stiffness to Weight: Bending, points 61
18
Strength to Weight: Axial, points 36
11
Strength to Weight: Bending, points 46
12
Thermal Diffusivity, mm2/s 28
22
Thermal Shock Resistance, points 15
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 0 to 0.020
84.2 to 87.5
Iron (Fe), % 0 to 0.010
0 to 0.2
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
Nickel (Ni), % 0 to 0.0050
1.2 to 2.0
Phosphorus (P), % 0
0 to 0.3
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
11.3 to 12.5
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
0 to 0.25
Zirconium (Zr), % 0.4 to 1.0
0