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ZC63A Magnesium vs. C38000 Brass

ZC63A magnesium belongs to the magnesium alloys classification, while C38000 brass belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, 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 ZC63A magnesium and the bottom bar is C38000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
100
Elongation at Break, % 3.3
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 19
39
Shear Strength, MPa 130
230
Tensile Strength: Ultimate (UTS), MPa 220
380
Tensile Strength: Yield (Proof), MPa 130
120

Thermal Properties

Latent Heat of Fusion, J/g 330
170
Maximum Temperature: Mechanical, °C 98
110
Melting Completion (Liquidus), °C 550
800
Melting Onset (Solidus), °C 470
760
Specific Heat Capacity, J/kg-K 950
380
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 26
21

Otherwise Unclassified Properties

Base Metal Price, % relative 13
22
Density, g/cm3 2.1
8.0
Embodied Carbon, kg CO2/kg material 22
2.7
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 920
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
50
Resilience: Unit (Modulus of Resilience), kJ/m3 190
74
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 58
19
Strength to Weight: Axial, points 29
13
Strength to Weight: Bending, points 38
14
Thermal Diffusivity, mm2/s 58
37
Thermal Shock Resistance, points 12
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Copper (Cu), % 2.4 to 3.0
55 to 60
Iron (Fe), % 0
0 to 0.35
Lead (Pb), % 0
1.5 to 2.5
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.2
0
Tin (Sn), % 0
0 to 0.3
Zinc (Zn), % 5.5 to 6.5
35.9 to 43.5
Residuals, % 0 to 0.3
0 to 0.5