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CC765S Brass vs. ISO-WD21150 Magnesium

CC765S brass belongs to the copper alloys classification, while ISO-WD21150 magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, 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 CC765S brass and the bottom bar is ISO-WD21150 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 21
5.7 to 11
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 42
17
Tensile Strength: Ultimate (UTS), MPa 540
240 to 290
Tensile Strength: Yield (Proof), MPa 220
120 to 200

Thermal Properties

Latent Heat of Fusion, J/g 180
350
Maximum Temperature: Mechanical, °C 140
110
Melting Completion (Liquidus), °C 860
600
Melting Onset (Solidus), °C 820
550
Specific Heat Capacity, J/kg-K 400
990
Thermal Conductivity, W/m-K 91
100
Thermal Expansion, µm/m-K 20
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
19
Electrical Conductivity: Equal Weight (Specific), % IACS 34
100

Otherwise Unclassified Properties

Base Metal Price, % relative 24
12
Density, g/cm3 8.0
1.7
Embodied Carbon, kg CO2/kg material 3.0
23
Embodied Energy, MJ/kg 51
160
Embodied Water, L/kg 330
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 90
15 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 220
160 to 460
Stiffness to Weight: Axial, points 7.6
15
Stiffness to Weight: Bending, points 20
70
Strength to Weight: Axial, points 19
40 to 48
Strength to Weight: Bending, points 18
52 to 58
Thermal Diffusivity, mm2/s 28
60
Thermal Shock Resistance, points 17
15 to 17

Alloy Composition

Aluminum (Al), % 0.5 to 2.5
2.4 to 3.6
Antimony (Sb), % 0 to 0.080
0
Copper (Cu), % 51 to 65
0 to 0.050
Iron (Fe), % 0.5 to 2.0
0 to 0.0050
Lead (Pb), % 0 to 0.5
0
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0.3 to 3.0
0.15 to 0.4
Nickel (Ni), % 0 to 6.0
0 to 0.0050
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.1
0 to 0.1
Tin (Sn), % 0 to 1.0
0
Zinc (Zn), % 19.8 to 47.7
0.5 to 1.5
Residuals, % 0
0 to 0.3