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CC751S Brass vs. EN-MC65120 Magnesium

CC751S brass belongs to the copper alloys classification, while EN-MC65120 magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 CC751S brass and the bottom bar is EN-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
55
Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 5.6
3.1
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
17
Tensile Strength: Ultimate (UTS), MPa 450
160
Tensile Strength: Yield (Proof), MPa 320
110

Thermal Properties

Latent Heat of Fusion, J/g 190
330
Maximum Temperature: Mechanical, °C 130
180
Melting Completion (Liquidus), °C 850
590
Melting Onset (Solidus), °C 810
520
Specific Heat Capacity, J/kg-K 390
970
Thermal Conductivity, W/m-K 110
100
Thermal Expansion, µm/m-K 20
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
25
Electrical Conductivity: Equal Weight (Specific), % IACS 28
120

Otherwise Unclassified Properties

Base Metal Price, % relative 24
25
Density, g/cm3 8.1
1.9
Embodied Carbon, kg CO2/kg material 2.8
25
Embodied Energy, MJ/kg 46
190
Embodied Water, L/kg 330
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 480
140
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 19
62
Strength to Weight: Axial, points 15
23
Strength to Weight: Bending, points 16
34
Thermal Diffusivity, mm2/s 35
56
Thermal Shock Resistance, points 15
9.8

Alloy Composition

Aluminum (Al), % 0 to 0.1
0
Antimony (Sb), % 0 to 0.5
0
Copper (Cu), % 62.7 to 66
0 to 0.030
Iron (Fe), % 0.25 to 0.5
0 to 0.010
Lead (Pb), % 0.8 to 2.2
0
Magnesium (Mg), % 0
91.8 to 95.1
Manganese (Mn), % 0 to 0.15
0 to 0.15
Nickel (Ni), % 0 to 0.8
0 to 0.0050
Silicon (Si), % 0.65 to 1.1
0 to 0.010
Tin (Sn), % 0 to 0.8
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 27.9 to 35.6
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010