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M1A Magnesium vs. C26800 Brass

M1A magnesium belongs to the magnesium alloys classification, while C26800 brass belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 M1A magnesium and the bottom bar is C26800 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
40
Tensile Strength: Ultimate (UTS), MPa 230
310 to 650

Thermal Properties

Latent Heat of Fusion, J/g 350
180
Maximum Temperature: Mechanical, °C 95
130
Melting Completion (Liquidus), °C 610
930
Melting Onset (Solidus), °C 580
900
Specific Heat Capacity, J/kg-K 990
390
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
27
Electrical Conductivity: Equal Weight (Specific), % IACS 190
30

Otherwise Unclassified Properties

Base Metal Price, % relative 12
24
Density, g/cm3 1.7
8.1
Embodied Carbon, kg CO2/kg material 24
2.7
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 970
320

Common Calculations

Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 38
11 to 22
Strength to Weight: Bending, points 49
13 to 21
Thermal Diffusivity, mm2/s 88
37
Thermal Shock Resistance, points 13
10 to 22

Alloy Composition

Calcium (Ca), % 0 to 0.3
0
Copper (Cu), % 0 to 0.050
64 to 68.5
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0
0 to 0.15
Magnesium (Mg), % 97.2 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0
31 to 36
Residuals, % 0
0 to 0.3