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ISO-WD21150 Magnesium vs. CC750S Brass

ISO-WD21150 magnesium belongs to the magnesium alloys classification, while CC750S brass belongs to the copper alloys. There are 28 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 ISO-WD21150 magnesium and the bottom bar is CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 5.7 to 11
13
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 240 to 290
200
Tensile Strength: Yield (Proof), MPa 120 to 200
80

Thermal Properties

Latent Heat of Fusion, J/g 350
170
Maximum Temperature: Mechanical, °C 110
130
Melting Completion (Liquidus), °C 600
860
Melting Onset (Solidus), °C 550
810
Specific Heat Capacity, J/kg-K 990
380
Thermal Conductivity, W/m-K 100
110
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 19
24
Electrical Conductivity: Equal Weight (Specific), % IACS 100
26

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 1.7
8.2
Embodied Carbon, kg CO2/kg material 23
2.8
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 980
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 24
22
Resilience: Unit (Modulus of Resilience), kJ/m3 160 to 460
30
Stiffness to Weight: Axial, points 15
7.1
Stiffness to Weight: Bending, points 70
19
Strength to Weight: Axial, points 40 to 48
6.8
Strength to Weight: Bending, points 52 to 58
9.3
Thermal Diffusivity, mm2/s 60
35
Thermal Shock Resistance, points 15 to 17
6.7

Alloy Composition

Aluminum (Al), % 2.4 to 3.6
0 to 0.1
Copper (Cu), % 0 to 0.050
62 to 67
Iron (Fe), % 0 to 0.0050
0 to 0.8
Lead (Pb), % 0
1.0 to 3.0
Magnesium (Mg), % 94 to 97
0
Manganese (Mn), % 0.15 to 0.4
0 to 0.2
Nickel (Ni), % 0 to 0.0050
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.1
0 to 0.050
Tin (Sn), % 0
0 to 1.5
Zinc (Zn), % 0.5 to 1.5
26.3 to 36
Residuals, % 0 to 0.3
0