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CC331G Bronze vs. QE22A Magnesium

CC331G bronze belongs to the copper alloys classification, while QE22A magnesium belongs to the magnesium 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 CC331G bronze and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
80
Elastic (Young's, Tensile) Modulus, GPa 110
44
Elongation at Break, % 20
2.4
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
17
Tensile Strength: Ultimate (UTS), MPa 620
250
Tensile Strength: Yield (Proof), MPa 240
190

Thermal Properties

Latent Heat of Fusion, J/g 230
340
Maximum Temperature: Mechanical, °C 220
250
Melting Completion (Liquidus), °C 1060
640
Melting Onset (Solidus), °C 1000
570
Specific Heat Capacity, J/kg-K 440
970
Thermal Conductivity, W/m-K 61
110
Thermal Expansion, µm/m-K 18
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
25
Electrical Conductivity: Equal Weight (Specific), % IACS 14
120

Otherwise Unclassified Properties

Density, g/cm3 8.3
2.0
Embodied Carbon, kg CO2/kg material 3.2
27
Embodied Energy, MJ/kg 53
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 97
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 250
400
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
60
Strength to Weight: Axial, points 21
36
Strength to Weight: Bending, points 19
46
Thermal Diffusivity, mm2/s 17
59
Thermal Shock Resistance, points 22
15

Alloy Composition

Aluminum (Al), % 8.5 to 10.5
0
Copper (Cu), % 83 to 86.5
0 to 0.1
Iron (Fe), % 1.5 to 3.5
0
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0 to 0.050
93.1 to 95.8
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 0 to 1.5
0 to 0.010
Silicon (Si), % 0 to 0.2
0
Silver (Ag), % 0
2.0 to 3.0
Tin (Sn), % 0 to 0.2
0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zinc (Zn), % 0 to 0.5
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3