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QE22A Magnesium vs. CC750S Brass

QE22A magnesium belongs to the magnesium alloys classification, while CC750S brass belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 QE22A magnesium and the bottom bar is CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
54
Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.4
13
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 250
200
Tensile Strength: Yield (Proof), MPa 190
80

Thermal Properties

Latent Heat of Fusion, J/g 340
170
Maximum Temperature: Mechanical, °C 250
130
Melting Completion (Liquidus), °C 640
860
Melting Onset (Solidus), °C 570
810
Specific Heat Capacity, J/kg-K 970
380
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
24
Electrical Conductivity: Equal Weight (Specific), % IACS 120
26

Otherwise Unclassified Properties

Density, g/cm3 2.0
8.2
Embodied Carbon, kg CO2/kg material 27
2.8
Embodied Energy, MJ/kg 220
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
22
Resilience: Unit (Modulus of Resilience), kJ/m3 400
30
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 60
19
Strength to Weight: Axial, points 36
6.8
Strength to Weight: Bending, points 46
9.3
Thermal Diffusivity, mm2/s 59
35
Thermal Shock Resistance, points 15
6.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.1
Copper (Cu), % 0 to 0.1
62 to 67
Iron (Fe), % 0
0 to 0.8
Lead (Pb), % 0
1.0 to 3.0
Magnesium (Mg), % 93.1 to 95.8
0
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.010
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.050
Silver (Ag), % 2.0 to 3.0
0
Tin (Sn), % 0
0 to 1.5
Unspecified Rare Earths, % 1.8 to 2.5
0
Zinc (Zn), % 0
26.3 to 36
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0