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AS41B Magnesium vs. C92800 Bronze

AS41B magnesium belongs to the magnesium alloys classification, while C92800 bronze belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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 AS41B magnesium and the bottom bar is C92800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 6.0
1.0
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 18
37
Tensile Strength: Ultimate (UTS), MPa 210
280
Tensile Strength: Yield (Proof), MPa 140
210

Thermal Properties

Latent Heat of Fusion, J/g 370
170
Maximum Temperature: Mechanical, °C 110
140
Melting Completion (Liquidus), °C 620
960
Melting Onset (Solidus), °C 570
820
Specific Heat Capacity, J/kg-K 1000
350
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 92
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
36
Density, g/cm3 1.7
8.7
Embodied Carbon, kg CO2/kg material 23
4.1
Embodied Energy, MJ/kg 160
67
Embodied Water, L/kg 980
430

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
2.5
Resilience: Unit (Modulus of Resilience), kJ/m3 220
210
Stiffness to Weight: Axial, points 15
6.4
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 35
8.8
Strength to Weight: Bending, points 47
11
Thermal Shock Resistance, points 13
11

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0 to 0.020
78 to 82
Iron (Fe), % 0 to 0.0035
0 to 0.2
Lead (Pb), % 0
4.0 to 6.0
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0 to 0.8
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0.5 to 1.5
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
15 to 17
Zinc (Zn), % 0 to 0.12
0 to 0.8
Residuals, % 0
0 to 0.7