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C35300 Brass vs. ZC63A Magnesium

C35300 brass belongs to the copper alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, 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 C35300 brass and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
48
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 39
19
Tensile Strength: Ultimate (UTS), MPa 340 to 650
220

Thermal Properties

Latent Heat of Fusion, J/g 170
330
Maximum Temperature: Mechanical, °C 120
98
Melting Completion (Liquidus), °C 910
550
Melting Onset (Solidus), °C 890
470
Specific Heat Capacity, J/kg-K 380
950
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 21
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
32
Electrical Conductivity: Equal Weight (Specific), % IACS 29
140

Otherwise Unclassified Properties

Base Metal Price, % relative 23
13
Density, g/cm3 8.1
2.1
Embodied Carbon, kg CO2/kg material 2.6
22
Embodied Energy, MJ/kg 45
150
Embodied Water, L/kg 320
920

Common Calculations

Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
58
Strength to Weight: Axial, points 12 to 22
29
Strength to Weight: Bending, points 13 to 21
38
Thermal Diffusivity, mm2/s 38
58
Thermal Shock Resistance, points 11 to 22
12

Alloy Composition

Copper (Cu), % 60 to 63
2.4 to 3.0
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 1.5 to 2.5
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0
0.25 to 0.75
Nickel (Ni), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.2
Zinc (Zn), % 33.9 to 38.5
5.5 to 6.5
Residuals, % 0 to 0.5
0 to 0.3