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EN-MC21230 Magnesium vs. C61300 Bronze

EN-MC21230 magnesium belongs to the magnesium alloys classification, while C61300 bronze belongs to the copper alloys. There are 29 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 EN-MC21230 magnesium and the bottom bar is C61300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 10
34 to 40
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
43
Shear Strength, MPa 130
370 to 390
Tensile Strength: Ultimate (UTS), MPa 220
550 to 580
Tensile Strength: Yield (Proof), MPa 140
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 350
220
Maximum Temperature: Mechanical, °C 120
210
Melting Completion (Liquidus), °C 600
1050
Melting Onset (Solidus), °C 520
1040
Specific Heat Capacity, J/kg-K 1000
420
Thermal Conductivity, W/m-K 72
55
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
12
Electrical Conductivity: Equal Weight (Specific), % IACS 63
13

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.7
8.5
Embodied Carbon, kg CO2/kg material 23
3.0
Embodied Energy, MJ/kg 160
49
Embodied Water, L/kg 990
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
150 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 200
230 to 410
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 36
18 to 19
Strength to Weight: Bending, points 48
18
Thermal Diffusivity, mm2/s 43
15
Thermal Shock Resistance, points 13
19 to 20

Alloy Composition

Aluminum (Al), % 5.5 to 8.5
6.0 to 7.5
Copper (Cu), % 0 to 0.010
88 to 91.8
Iron (Fe), % 0 to 0.0050
2.0 to 3.0
Lead (Pb), % 0
0 to 0.010
Magnesium (Mg), % 90.5 to 94.4
0
Manganese (Mn), % 0.1 to 0.6
0 to 0.2
Nickel (Ni), % 0 to 0.0020
0 to 0.15
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.1
0 to 0.1
Tin (Sn), % 0
0.2 to 0.5
Zinc (Zn), % 0 to 0.3
0 to 0.2
Residuals, % 0 to 0.010
0 to 0.2