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C90500 Gun Metal vs. ZC63A Magnesium

C90500 gun metal belongs to the copper alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 30 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 C90500 gun metal and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
48
Elongation at Break, % 20
3.3
Fatigue Strength, MPa 90
94
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 40
19
Tensile Strength: Ultimate (UTS), MPa 320
220
Tensile Strength: Yield (Proof), MPa 160
130

Thermal Properties

Latent Heat of Fusion, J/g 190
330
Maximum Temperature: Mechanical, °C 170
98
Melting Completion (Liquidus), °C 1000
550
Melting Onset (Solidus), °C 850
470
Solidification (Pattern Maker's) Shrinkage, % 1.6
1.6
Specific Heat Capacity, J/kg-K 370
950
Thermal Conductivity, W/m-K 75
120
Thermal Expansion, µm/m-K 18
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
32
Electrical Conductivity: Equal Weight (Specific), % IACS 11
140

Otherwise Unclassified Properties

Base Metal Price, % relative 35
13
Density, g/cm3 8.7
2.1
Embodied Carbon, kg CO2/kg material 3.6
22
Embodied Energy, MJ/kg 59
150
Embodied Water, L/kg 390
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 54
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 110
190
Stiffness to Weight: Axial, points 6.9
13
Stiffness to Weight: Bending, points 18
58
Strength to Weight: Axial, points 10
29
Strength to Weight: Bending, points 12
38
Thermal Diffusivity, mm2/s 23
58
Thermal Shock Resistance, points 12
12

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 86 to 89
2.4 to 3.0
Iron (Fe), % 0 to 0.2
0
Lead (Pb), % 0 to 0.3
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0
0.25 to 0.75
Nickel (Ni), % 0 to 1.0
0 to 0.010
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0 to 0.2
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 9.0 to 11
0
Zinc (Zn), % 1.0 to 3.0
5.5 to 6.5
Residuals, % 0
0 to 0.3