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ZE41A Magnesium vs. C38000 Brass

ZE41A 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 (7, 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 C38000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 3.3
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
39
Shear Strength, MPa 150
230
Tensile Strength: Ultimate (UTS), MPa 210
380
Tensile Strength: Yield (Proof), MPa 140
120

Thermal Properties

Latent Heat of Fusion, J/g 330
170
Maximum Temperature: Mechanical, °C 150
110
Melting Completion (Liquidus), °C 640
800
Melting Onset (Solidus), °C 540
760
Specific Heat Capacity, J/kg-K 970
380
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 27
21

Otherwise Unclassified Properties

Base Metal Price, % relative 18
22
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 24
2.7
Embodied Energy, MJ/kg 170
46
Embodied Water, L/kg 940
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
50
Resilience: Unit (Modulus of Resilience), kJ/m3 220
74
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 63
19
Strength to Weight: Axial, points 31
13
Strength to Weight: Bending, points 41
14
Thermal Diffusivity, mm2/s 59
37
Thermal Shock Resistance, points 12
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.5
Copper (Cu), % 0 to 0.1
55 to 60
Iron (Fe), % 0
0 to 0.35
Lead (Pb), % 0
1.5 to 2.5
Magnesium (Mg), % 91.7 to 95.4
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.010
0
Tin (Sn), % 0
0 to 0.3
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
35.9 to 43.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.5