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C87900 Brass vs. ZE41A Magnesium

C87900 brass belongs to the copper alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 28 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 C87900 brass and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 25
3.3
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 41
18
Tensile Strength: Ultimate (UTS), MPa 480
210
Tensile Strength: Yield (Proof), MPa 240
140

Thermal Properties

Latent Heat of Fusion, J/g 190
330
Maximum Temperature: Mechanical, °C 130
150
Melting Completion (Liquidus), °C 930
640
Melting Onset (Solidus), °C 900
540
Specific Heat Capacity, J/kg-K 390
970
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 20
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
27
Electrical Conductivity: Equal Weight (Specific), % IACS 17
130

Otherwise Unclassified Properties

Base Metal Price, % relative 24
18
Density, g/cm3 8.1
1.9
Embodied Carbon, kg CO2/kg material 2.7
24
Embodied Energy, MJ/kg 46
170
Embodied Water, L/kg 320
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 270
220
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 20
63
Strength to Weight: Axial, points 17
31
Strength to Weight: Bending, points 17
41
Thermal Diffusivity, mm2/s 37
59
Thermal Shock Resistance, points 16
12

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Antimony (Sb), % 0 to 0.050
0
Arsenic (As), % 0 to 0.050
0
Copper (Cu), % 63 to 69.2
0 to 0.1
Iron (Fe), % 0 to 0.4
0
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0 to 0.15
0 to 0.15
Nickel (Ni), % 0 to 0.5
0 to 0.010
Phosphorus (P), % 0 to 0.010
0
Silicon (Si), % 0.8 to 1.2
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 0 to 0.25
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 30 to 36
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3