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K1A Magnesium vs. C37000 Muntz Metal

K1A magnesium belongs to the magnesium alloys classification, while C37000 Muntz Metal belongs to the copper alloys. There are 29 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 C37000 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 43
100
Elongation at Break, % 13
40
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
39
Shear Strength, MPa 55
270
Tensile Strength: Ultimate (UTS), MPa 180
400
Tensile Strength: Yield (Proof), MPa 51
160

Thermal Properties

Latent Heat of Fusion, J/g 350
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 650
900
Melting Onset (Solidus), °C 650
890
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 120
120
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
27
Electrical Conductivity: Equal Weight (Specific), % IACS 170
30

Otherwise Unclassified Properties

Base Metal Price, % relative 13
23
Density, g/cm3 1.6
8.1
Embodied Carbon, kg CO2/kg material 24
2.7
Embodied Energy, MJ/kg 170
45
Embodied Water, L/kg 970
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
130
Resilience: Unit (Modulus of Resilience), kJ/m3 30
120
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 73
19
Strength to Weight: Axial, points 31
14
Strength to Weight: Bending, points 43
15
Thermal Diffusivity, mm2/s 75
39
Thermal Shock Resistance, points 11
13

Alloy Composition


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Copper (Cu), % 0
59 to 62
Iron (Fe), % 0
0 to 0.15
Lead (Pb), % 0
0.8 to 1.5
Magnesium (Mg), % 98.7 to 99.6
0
Zinc (Zn), % 0
36 to 40.2
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.4