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ZK61A Magnesium vs. C42200 Brass

ZK61A magnesium belongs to the magnesium alloys classification, while C42200 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, 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 ZK61A magnesium and the bottom bar is C42200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
110
Elongation at Break, % 5.8 to 7.1
2.0 to 46
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
42
Shear Strength, MPa 170 to 180
210 to 350
Tensile Strength: Ultimate (UTS), MPa 290 to 310
300 to 610
Tensile Strength: Yield (Proof), MPa 180 to 200
100 to 570

Thermal Properties

Latent Heat of Fusion, J/g 330
200
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 640
1040
Melting Onset (Solidus), °C 530
1020
Specific Heat Capacity, J/kg-K 960
380
Thermal Conductivity, W/m-K 120
130
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
31
Electrical Conductivity: Equal Weight (Specific), % IACS 130
32

Otherwise Unclassified Properties

Base Metal Price, % relative 13
29
Density, g/cm3 1.9
8.6
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
44
Embodied Water, L/kg 940
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 19
12 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 370 to 420
49 to 1460
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 62
19
Strength to Weight: Axial, points 42 to 45
9.5 to 19
Strength to Weight: Bending, points 50 to 53
11 to 18
Thermal Diffusivity, mm2/s 65
39
Thermal Shock Resistance, points 17 to 18
10 to 21

Alloy Composition

Copper (Cu), % 0 to 0.1
86 to 89
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 92.1 to 93.9
0
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.35
Tin (Sn), % 0
0.8 to 1.4
Zinc (Zn), % 5.5 to 6.5
8.7 to 13.2
Zirconium (Zr), % 0.6 to 1.0
0
Residuals, % 0
0 to 0.5