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C94900 Bronze vs. ZK61A Magnesium

C94900 bronze belongs to the copper alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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 C94900 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, % 17
5.8 to 7.1
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 41
18
Tensile Strength: Ultimate (UTS), MPa 300
290 to 310
Tensile Strength: Yield (Proof), MPa 130
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 190
330
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 980
640
Melting Onset (Solidus), °C 910
530
Specific Heat Capacity, J/kg-K 370
960
Thermal Expansion, µm/m-K 18
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
29
Electrical Conductivity: Equal Weight (Specific), % IACS 14
130

Otherwise Unclassified Properties

Base Metal Price, % relative 32
13
Density, g/cm3 8.8
1.9
Embodied Carbon, kg CO2/kg material 3.4
23
Embodied Energy, MJ/kg 55
160
Embodied Water, L/kg 350
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 41
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 72
370 to 420
Stiffness to Weight: Axial, points 6.9
13
Stiffness to Weight: Bending, points 18
62
Strength to Weight: Axial, points 9.4
42 to 45
Strength to Weight: Bending, points 11
50 to 53
Thermal Shock Resistance, points 11
17 to 18

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.25
0
Copper (Cu), % 79 to 81
0 to 0.1
Iron (Fe), % 0 to 0.3
0
Lead (Pb), % 4.0 to 6.0
0
Magnesium (Mg), % 0
92.1 to 93.9
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 4.0 to 6.0
0 to 0.010
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.080
0
Tin (Sn), % 4.0 to 6.0
0
Zinc (Zn), % 4.0 to 6.0
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3