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QE22A Magnesium vs. C99750 Brass

QE22A magnesium belongs to the magnesium alloys classification, while C99750 brass belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (10, 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 C99750 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
110 to 120
Elastic (Young's, Tensile) Modulus, GPa 44
130
Elongation at Break, % 2.4
20 to 30
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
48
Tensile Strength: Ultimate (UTS), MPa 250
450 to 520
Tensile Strength: Yield (Proof), MPa 190
220 to 280

Thermal Properties

Latent Heat of Fusion, J/g 340
200
Maximum Temperature: Mechanical, °C 250
160
Melting Completion (Liquidus), °C 640
840
Melting Onset (Solidus), °C 570
820
Specific Heat Capacity, J/kg-K 970
410
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.2

Otherwise Unclassified Properties

Density, g/cm3 2.0
8.1
Embodied Carbon, kg CO2/kg material 27
3.1
Embodied Energy, MJ/kg 220
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 400
190 to 300
Stiffness to Weight: Axial, points 13
8.6
Stiffness to Weight: Bending, points 60
21
Strength to Weight: Axial, points 36
15 to 18
Strength to Weight: Bending, points 46
16 to 18
Thermal Shock Resistance, points 15
13 to 15

Alloy Composition

Aluminum (Al), % 0
0.25 to 3.0
Copper (Cu), % 0 to 0.1
55 to 61
Iron (Fe), % 0
0 to 1.0
Lead (Pb), % 0
0.5 to 2.5
Magnesium (Mg), % 93.1 to 95.8
0
Manganese (Mn), % 0
17 to 23
Nickel (Ni), % 0 to 0.010
0 to 5.0
Silver (Ag), % 2.0 to 3.0
0
Unspecified Rare Earths, % 1.8 to 2.5
0
Zinc (Zn), % 0
17 to 23
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.3