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EN-MC65210 Magnesium vs. C90500 Gun Metal

EN-MC65210 magnesium belongs to the magnesium alloys classification, while C90500 gun metal belongs to the copper alloys. There are 27 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 EN-MC65210 magnesium and the bottom bar is C90500 gun metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 2.8
20
Fatigue Strength, MPa 110
90
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 270
320
Tensile Strength: Yield (Proof), MPa 200
160

Thermal Properties

Latent Heat of Fusion, J/g 340
190
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 610
1000
Melting Onset (Solidus), °C 540
850
Specific Heat Capacity, J/kg-K 970
370
Thermal Conductivity, W/m-K 110
75
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
11
Electrical Conductivity: Equal Weight (Specific), % IACS 110
11

Otherwise Unclassified Properties

Density, g/cm3 2.0
8.7
Embodied Carbon, kg CO2/kg material 27
3.6
Embodied Energy, MJ/kg 220
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
54
Resilience: Unit (Modulus of Resilience), kJ/m3 450
110
Stiffness to Weight: Axial, points 12
6.9
Stiffness to Weight: Bending, points 59
18
Strength to Weight: Axial, points 38
10
Strength to Weight: Bending, points 47
12
Thermal Diffusivity, mm2/s 58
23
Thermal Shock Resistance, points 17
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 0 to 0.030
86 to 89
Iron (Fe), % 0 to 0.010
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.010
0 to 0.0050
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
9.0 to 11
Unspecified Rare Earths, % 2.0 to 3.0
0
Zinc (Zn), % 0 to 0.2
1.0 to 3.0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.3