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CC497K Bronze vs. EQ21A Magnesium

CC497K 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 CC497K bronze and the bottom bar is EQ21A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
80
Elastic (Young's, Tensile) Modulus, GPa 93
44
Elongation at Break, % 6.7
2.4
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 34
17
Tensile Strength: Ultimate (UTS), MPa 190
250
Tensile Strength: Yield (Proof), MPa 91
190

Thermal Properties

Latent Heat of Fusion, J/g 160
340
Maximum Temperature: Mechanical, °C 130
160
Melting Completion (Liquidus), °C 870
640
Melting Onset (Solidus), °C 800
560
Specific Heat Capacity, J/kg-K 330
980
Thermal Conductivity, W/m-K 53
110
Thermal Expansion, µm/m-K 20
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.0
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
120

Otherwise Unclassified Properties

Base Metal Price, % relative 29
80
Density, g/cm3 9.3
1.9
Embodied Carbon, kg CO2/kg material 3.0
27
Embodied Energy, MJ/kg 48
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
5.6
Resilience: Unit (Modulus of Resilience), kJ/m3 45
410
Stiffness to Weight: Axial, points 5.5
13
Stiffness to Weight: Bending, points 16
63
Strength to Weight: Axial, points 5.6
37
Strength to Weight: Bending, points 7.8
47
Thermal Diffusivity, mm2/s 17
62
Thermal Shock Resistance, points 7.2
15

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.75
0
Copper (Cu), % 67.5 to 77.5
0.050 to 0.1
Iron (Fe), % 0 to 0.25
0
Lead (Pb), % 18 to 23
0
Magnesium (Mg), % 0
93.9 to 96.8
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0.5 to 2.5
0 to 0.010
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 0
1.3 to 1.7
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 4.0 to 6.0
0
Unspecified Rare Earths, % 0
1.5 to 3.0
Zinc (Zn), % 0 to 2.0
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3