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CC334G Bronze vs. EQ21A Magnesium

CC334G 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 CC334G bronze and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
80
Elastic (Young's, Tensile) Modulus, GPa 120
44
Elongation at Break, % 5.6
2.4
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 45
17
Tensile Strength: Ultimate (UTS), MPa 810
250
Tensile Strength: Yield (Proof), MPa 410
190

Thermal Properties

Latent Heat of Fusion, J/g 240
340
Maximum Temperature: Mechanical, °C 240
160
Melting Completion (Liquidus), °C 1080
640
Melting Onset (Solidus), °C 1020
560
Specific Heat Capacity, J/kg-K 450
980
Thermal Conductivity, W/m-K 41
110
Thermal Expansion, µm/m-K 18
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
120

Otherwise Unclassified Properties

Base Metal Price, % relative 29
80
Density, g/cm3 8.2
1.9
Embodied Carbon, kg CO2/kg material 3.6
27
Embodied Energy, MJ/kg 59
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 710
410
Stiffness to Weight: Axial, points 8.1
13
Stiffness to Weight: Bending, points 20
63
Strength to Weight: Axial, points 28
37
Strength to Weight: Bending, points 24
47
Thermal Diffusivity, mm2/s 11
62
Thermal Shock Resistance, points 28
15

Alloy Composition

Aluminum (Al), % 10 to 12
0
Copper (Cu), % 72 to 84.5
0.050 to 0.1
Iron (Fe), % 3.0 to 7.0
0
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0 to 0.050
93.9 to 96.8
Manganese (Mn), % 0 to 2.5
0
Nickel (Ni), % 4.0 to 7.5
0 to 0.010
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
1.3 to 1.7
Tin (Sn), % 0 to 0.2
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