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AM100A Magnesium vs. C38000 Brass

AM100A magnesium belongs to the magnesium alloys classification, while C38000 brass belongs to the copper alloys. There are 27 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 AM100A magnesium and the bottom bar is C38000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
100
Elongation at Break, % 1.0 to 6.8
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
39
Shear Strength, MPa 90 to 150
230
Tensile Strength: Ultimate (UTS), MPa 160 to 270
380
Tensile Strength: Yield (Proof), MPa 78 to 140
120

Thermal Properties

Latent Heat of Fusion, J/g 350
170
Maximum Temperature: Mechanical, °C 140
110
Melting Completion (Liquidus), °C 590
800
Melting Onset (Solidus), °C 460
760
Specific Heat Capacity, J/kg-K 990
380
Thermal Conductivity, W/m-K 73
110
Thermal Expansion, µm/m-K 25
21

Otherwise Unclassified Properties

Base Metal Price, % relative 12
22
Density, g/cm3 1.7
8.0
Embodied Carbon, kg CO2/kg material 22
2.7
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 1000
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 1.3 to 15
50
Resilience: Unit (Modulus of Resilience), kJ/m3 66 to 210
74
Stiffness to Weight: Axial, points 15
7.1
Stiffness to Weight: Bending, points 70
19
Strength to Weight: Axial, points 25 to 44
13
Strength to Weight: Bending, points 38 to 54
14
Thermal Diffusivity, mm2/s 43
37
Thermal Shock Resistance, points 9.7 to 17
13

Alloy Composition

Aluminum (Al), % 9.3 to 10.7
0 to 0.5
Copper (Cu), % 0 to 0.1
55 to 60
Iron (Fe), % 0
0 to 0.35
Lead (Pb), % 0
1.5 to 2.5
Magnesium (Mg), % 87.9 to 90.6
0
Manganese (Mn), % 0.1 to 0.35
0
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.3
0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 0 to 0.3
35.9 to 43.5
Residuals, % 0
0 to 0.5