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K1A Magnesium vs. C94700 Bronze

K1A magnesium belongs to the magnesium alloys classification, while C94700 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, 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 K1A magnesium and the bottom bar is C94700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 43
110
Elongation at Break, % 13
7.9 to 32
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Tensile Strength: Ultimate (UTS), MPa 180
350 to 590
Tensile Strength: Yield (Proof), MPa 51
160 to 400

Thermal Properties

Latent Heat of Fusion, J/g 350
200
Maximum Temperature: Mechanical, °C 120
190
Melting Completion (Liquidus), °C 650
1030
Melting Onset (Solidus), °C 650
900
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 120
54
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
12
Electrical Conductivity: Equal Weight (Specific), % IACS 170
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
34
Density, g/cm3 1.6
8.8
Embodied Carbon, kg CO2/kg material 24
3.5
Embodied Energy, MJ/kg 170
56
Embodied Water, L/kg 970
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
41 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 30
110 to 700
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 73
18
Strength to Weight: Axial, points 31
11 to 19
Strength to Weight: Bending, points 43
13 to 18
Thermal Diffusivity, mm2/s 75
16
Thermal Shock Resistance, points 11
12 to 21

Alloy Composition


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Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.15
Copper (Cu), % 0
85 to 90
Iron (Fe), % 0
0 to 0.25
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 98.7 to 99.6
0
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0
4.5 to 6.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
4.5 to 6.0
Zinc (Zn), % 0
1.0 to 2.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 1.3