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AM60B Magnesium vs. C93900 Bronze

AM60B magnesium belongs to the magnesium alloys classification, while C93900 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 AM60B magnesium and the bottom bar is C93900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
95
Elongation at Break, % 11
5.6
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 17
35
Tensile Strength: Ultimate (UTS), MPa 230
190
Tensile Strength: Yield (Proof), MPa 130
130

Thermal Properties

Latent Heat of Fusion, J/g 350
170
Maximum Temperature: Mechanical, °C 120
140
Melting Completion (Liquidus), °C 620
940
Melting Onset (Solidus), °C 540
850
Specific Heat Capacity, J/kg-K 1000
340
Thermal Conductivity, W/m-K 61
52
Thermal Expansion, µm/m-K 26
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
11
Electrical Conductivity: Equal Weight (Specific), % IACS 72
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
30
Density, g/cm3 1.7
9.1
Embodied Carbon, kg CO2/kg material 23
3.0
Embodied Energy, MJ/kg 160
49
Embodied Water, L/kg 990
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
9.5
Resilience: Unit (Modulus of Resilience), kJ/m3 190
83
Stiffness to Weight: Axial, points 15
5.8
Stiffness to Weight: Bending, points 71
17
Strength to Weight: Axial, points 38
5.9
Strength to Weight: Bending, points 50
8.1
Thermal Diffusivity, mm2/s 37
17
Thermal Shock Resistance, points 14
7.5

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
0 to 0.0050
Antimony (Sb), % 0
0 to 0.5
Copper (Cu), % 0 to 0.010
76.5 to 79.5
Iron (Fe), % 0 to 0.0050
0 to 0.4
Lead (Pb), % 0
14 to 18
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0 to 0.8
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.1
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
5.0 to 7.0
Zinc (Zn), % 0 to 0.22
0 to 1.5
Residuals, % 0
0 to 1.1