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AZ91B Magnesium vs. C10200 Copper

AZ91B magnesium belongs to the magnesium alloys classification, while C10200 copper belongs to the copper alloys. There are 30 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 AZ91B magnesium and the bottom bar is C10200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
120
Elongation at Break, % 5.0
2.6 to 50
Poisson's Ratio 0.29
0.34
Rockwell F Hardness 75
57 to 100
Shear Modulus, GPa 18
43
Shear Strength, MPa 140
160 to 240
Tensile Strength: Ultimate (UTS), MPa 240
230 to 410
Tensile Strength: Yield (Proof), MPa 160
77 to 400

Thermal Properties

Latent Heat of Fusion, J/g 360
210
Maximum Temperature: Mechanical, °C 130
200
Melting Completion (Liquidus), °C 600
1080
Melting Onset (Solidus), °C 470
1080
Specific Heat Capacity, J/kg-K 990
390
Thermal Conductivity, W/m-K 73
390
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
100
Electrical Conductivity: Equal Weight (Specific), % IACS 58
100

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.7
9.0
Embodied Carbon, kg CO2/kg material 22
2.6
Embodied Energy, MJ/kg 160
41
Embodied Water, L/kg 990
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
9.4 to 91
Resilience: Unit (Modulus of Resilience), kJ/m3 280
25 to 690
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 69
18
Strength to Weight: Axial, points 38
7.2 to 13
Strength to Weight: Bending, points 49
9.4 to 14
Thermal Diffusivity, mm2/s 42
110
Thermal Shock Resistance, points 14
8.2 to 15

Alloy Composition

Aluminum (Al), % 8.3 to 9.7
0
Copper (Cu), % 0 to 0.35
99.95 to 100
Magnesium (Mg), % 87.9 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0
Nickel (Ni), % 0 to 0.030
0
Oxygen (O), % 0
0 to 0.0010
Silicon (Si), % 0 to 0.5
0
Zinc (Zn), % 0.35 to 1.0
0