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ISO-WD32260 Magnesium vs. C95200 Bronze

ISO-WD32260 magnesium belongs to the magnesium alloys classification, while C95200 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 ISO-WD32260 magnesium and the bottom bar is C95200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
110
Elongation at Break, % 4.5 to 6.0
29
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
42
Tensile Strength: Ultimate (UTS), MPa 330 to 340
520
Tensile Strength: Yield (Proof), MPa 230 to 250
190

Thermal Properties

Latent Heat of Fusion, J/g 330
230
Maximum Temperature: Mechanical, °C 120
220
Melting Completion (Liquidus), °C 600
1050
Melting Onset (Solidus), °C 520
1040
Specific Heat Capacity, J/kg-K 970
430
Thermal Conductivity, W/m-K 110
50
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
11
Electrical Conductivity: Equal Weight (Specific), % IACS 140
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
28
Density, g/cm3 1.9
8.3
Embodied Carbon, kg CO2/kg material 23
3.0
Embodied Energy, MJ/kg 160
50
Embodied Water, L/kg 940
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 14 to 19
120
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 700
170
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 63
19
Strength to Weight: Axial, points 48 to 51
17
Strength to Weight: Bending, points 56 to 58
17
Thermal Diffusivity, mm2/s 63
14
Thermal Shock Resistance, points 19 to 20
19

Alloy Composition

Aluminum (Al), % 0
8.5 to 9.5
Copper (Cu), % 0
86 to 89
Iron (Fe), % 0
2.5 to 4.0
Magnesium (Mg), % 92.7 to 94.8
0
Zinc (Zn), % 4.8 to 6.2
0
Zirconium (Zr), % 0.45 to 0.8
0
Residuals, % 0
0 to 1.0