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ZE41A Magnesium vs. C90500 Gun Metal

ZE41A magnesium belongs to the magnesium alloys classification, while C90500 gun metal belongs to the copper alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 ZE41A magnesium and the bottom bar is C90500 gun metal.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 350
280
Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 3.3
20
Fatigue Strength, MPa 98
90
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
40
Tensile Strength: Ultimate (UTS), MPa 210
320
Tensile Strength: Yield (Proof), MPa 140
160

Thermal Properties

Latent Heat of Fusion, J/g 330
190
Maximum Temperature: Mechanical, °C 150
170
Melting Completion (Liquidus), °C 640
1000
Melting Onset (Solidus), °C 540
850
Solidification (Pattern Maker's) Shrinkage, % 1.3
1.6
Specific Heat Capacity, J/kg-K 970
370
Thermal Conductivity, W/m-K 110
75
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
11
Electrical Conductivity: Equal Weight (Specific), % IACS 130
11

Otherwise Unclassified Properties

Base Metal Price, % relative 18
35
Density, g/cm3 1.9
8.7
Embodied Carbon, kg CO2/kg material 24
3.6
Embodied Energy, MJ/kg 170
59
Embodied Water, L/kg 940
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
54
Resilience: Unit (Modulus of Resilience), kJ/m3 220
110
Stiffness to Weight: Axial, points 13
6.9
Stiffness to Weight: Bending, points 63
18
Strength to Weight: Axial, points 31
10
Strength to Weight: Bending, points 41
12
Thermal Diffusivity, mm2/s 59
23
Thermal Shock Resistance, points 12
12

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 0 to 0.1
86 to 89
Iron (Fe), % 0
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Magnesium (Mg), % 91.7 to 95.4
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.010
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
9.0 to 11
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
1.0 to 3.0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.3