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C90800 Bronze vs. ZK61A Magnesium

C90800 bronze belongs to the copper alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 28 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 C90800 bronze and the bottom bar is ZK61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
46
Elongation at Break, % 13
5.8 to 7.1
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 40
18
Tensile Strength: Ultimate (UTS), MPa 330
290 to 310
Tensile Strength: Yield (Proof), MPa 170
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 190
330
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 990
640
Melting Onset (Solidus), °C 870
530
Specific Heat Capacity, J/kg-K 370
960
Thermal Conductivity, W/m-K 68
120
Thermal Expansion, µm/m-K 18
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
29
Electrical Conductivity: Equal Weight (Specific), % IACS 11
130

Otherwise Unclassified Properties

Base Metal Price, % relative 36
13
Density, g/cm3 8.7
1.9
Embodied Carbon, kg CO2/kg material 3.8
23
Embodied Energy, MJ/kg 62
160
Embodied Water, L/kg 410
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 140
370 to 420
Stiffness to Weight: Axial, points 6.9
13
Stiffness to Weight: Bending, points 18
62
Strength to Weight: Axial, points 11
42 to 45
Strength to Weight: Bending, points 12
50 to 53
Thermal Diffusivity, mm2/s 21
65
Thermal Shock Resistance, points 12
17 to 18

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 85.3 to 89
0 to 0.1
Iron (Fe), % 0 to 0.15
0
Lead (Pb), % 0 to 0.25
0
Magnesium (Mg), % 0
92.1 to 93.9
Nickel (Ni), % 0 to 0.5
0 to 0.010
Phosphorus (P), % 0 to 0.3
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 11 to 13
0
Zinc (Zn), % 0 to 0.25
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3