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CC490K Brass vs. QE22A Magnesium

CC490K brass 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 CC490K brass and the bottom bar is QE22A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 76
80
Elastic (Young's, Tensile) Modulus, GPa 110
44
Elongation at Break, % 15
2.4
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 40
17
Tensile Strength: Ultimate (UTS), MPa 230
250
Tensile Strength: Yield (Proof), MPa 110
190

Thermal Properties

Latent Heat of Fusion, J/g 190
340
Maximum Temperature: Mechanical, °C 160
250
Melting Completion (Liquidus), °C 980
640
Melting Onset (Solidus), °C 910
570
Specific Heat Capacity, J/kg-K 370
970
Thermal Conductivity, W/m-K 72
110
Thermal Expansion, µm/m-K 19
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
25
Electrical Conductivity: Equal Weight (Specific), % IACS 16
120

Otherwise Unclassified Properties

Density, g/cm3 8.8
2.0
Embodied Carbon, kg CO2/kg material 2.9
27
Embodied Energy, MJ/kg 47
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 54
400
Stiffness to Weight: Axial, points 6.8
13
Stiffness to Weight: Bending, points 18
60
Strength to Weight: Axial, points 7.3
36
Strength to Weight: Bending, points 9.5
46
Thermal Diffusivity, mm2/s 22
59
Thermal Shock Resistance, points 8.2
15

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Antimony (Sb), % 0 to 0.3
0
Copper (Cu), % 81 to 86
0 to 0.1
Iron (Fe), % 0 to 0.5
0
Lead (Pb), % 3.0 to 6.0
0
Magnesium (Mg), % 0
93.1 to 95.8
Nickel (Ni), % 0 to 2.0
0 to 0.010
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 0
2.0 to 3.0
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 2.0 to 3.5
0
Unspecified Rare Earths, % 0
1.8 to 2.5
Zinc (Zn), % 7.0 to 9.5
0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3