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EN-MC21210 Magnesium vs. C91700 Bronze

EN-MC21210 magnesium belongs to the magnesium alloys classification, while C91700 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 EN-MC21210 magnesium and the bottom bar is C91700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
90
Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 14
13
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
41
Tensile Strength: Ultimate (UTS), MPa 190
330
Tensile Strength: Yield (Proof), MPa 90
170

Thermal Properties

Latent Heat of Fusion, J/g 350
190
Maximum Temperature: Mechanical, °C 100
170
Melting Completion (Liquidus), °C 600
1020
Melting Onset (Solidus), °C 570
850
Specific Heat Capacity, J/kg-K 1000
370
Thermal Conductivity, W/m-K 120
71
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
10
Electrical Conductivity: Equal Weight (Specific), % IACS 130
10

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 1.6
8.7
Embodied Carbon, kg CO2/kg material 24
3.9
Embodied Energy, MJ/kg 160
63
Embodied Water, L/kg 980
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
35
Resilience: Unit (Modulus of Resilience), kJ/m3 92
140
Stiffness to Weight: Axial, points 15
6.9
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 32
11
Strength to Weight: Bending, points 44
12
Thermal Diffusivity, mm2/s 76
22
Thermal Shock Resistance, points 11
12

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 0 to 0.010
84.2 to 87.5
Iron (Fe), % 0 to 0.0050
0 to 0.2
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
1.2 to 2.0
Phosphorus (P), % 0
0 to 0.3
Silicon (Si), % 0 to 0.1
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
11.3 to 12.5
Zinc (Zn), % 0 to 0.2
0 to 0.25
Residuals, % 0 to 0.010
0