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ZC63A Magnesium vs. C68300 Brass

ZC63A magnesium belongs to the magnesium alloys classification, while C68300 brass 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 ZC63A magnesium and the bottom bar is C68300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
100
Elongation at Break, % 3.3
15
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 19
40
Shear Strength, MPa 130
260
Tensile Strength: Ultimate (UTS), MPa 220
430
Tensile Strength: Yield (Proof), MPa 130
260

Thermal Properties

Latent Heat of Fusion, J/g 330
180
Maximum Temperature: Mechanical, °C 98
120
Melting Completion (Liquidus), °C 550
900
Melting Onset (Solidus), °C 470
890
Specific Heat Capacity, J/kg-K 950
390
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 26
20

Otherwise Unclassified Properties

Base Metal Price, % relative 13
23
Density, g/cm3 2.1
8.0
Embodied Carbon, kg CO2/kg material 22
2.8
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 920
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
56
Resilience: Unit (Modulus of Resilience), kJ/m3 190
330
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 58
20
Strength to Weight: Axial, points 29
15
Strength to Weight: Bending, points 38
16
Thermal Diffusivity, mm2/s 58
38
Thermal Shock Resistance, points 12
14

Alloy Composition

Antimony (Sb), % 0
0.3 to 1.0
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 2.4 to 3.0
59 to 63
Lead (Pb), % 0
0 to 0.090
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
0.3 to 1.0
Tin (Sn), % 0
0.050 to 0.2
Zinc (Zn), % 5.5 to 6.5
34.2 to 40.4
Residuals, % 0 to 0.3
0 to 0.5