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CC330G Bronze vs. EQ21A Magnesium

CC330G bronze belongs to the copper alloys classification, while EQ21A magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 CC330G bronze and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
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 42
17
Tensile Strength: Ultimate (UTS), MPa 530
250
Tensile Strength: Yield (Proof), MPa 190
190

Thermal Properties

Latent Heat of Fusion, J/g 230
340
Maximum Temperature: Mechanical, °C 220
160
Melting Completion (Liquidus), °C 1050
640
Melting Onset (Solidus), °C 1000
560
Specific Heat Capacity, J/kg-K 430
980
Thermal Conductivity, W/m-K 62
110
Thermal Expansion, µm/m-K 18
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
25
Electrical Conductivity: Equal Weight (Specific), % IACS 15
120

Otherwise Unclassified Properties

Base Metal Price, % relative 29
80
Density, g/cm3 8.4
1.9
Embodied Carbon, kg CO2/kg material 3.2
27
Embodied Energy, MJ/kg 52
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 170
410
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 19
63
Strength to Weight: Axial, points 18
37
Strength to Weight: Bending, points 17
47
Thermal Diffusivity, mm2/s 17
62
Thermal Shock Resistance, points 19
15

Alloy Composition

Aluminum (Al), % 8.0 to 10.5
0
Copper (Cu), % 87 to 92
0.050 to 0.1
Iron (Fe), % 0 to 1.2
0
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0
93.9 to 96.8
Manganese (Mn), % 0 to 0.5
0
Nickel (Ni), % 0 to 1.0
0 to 0.010
Silicon (Si), % 0 to 0.2
0
Silver (Ag), % 0
1.3 to 1.7
Tin (Sn), % 0 to 0.3
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Zinc (Zn), % 0 to 0.5
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3