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AWS ENiCu-7 vs. ZK61A Magnesium

AWS ENiCu-7 belongs to the nickel alloys classification, while ZK61A magnesium belongs to the magnesium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, 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 AWS ENiCu-7 and the bottom bar is ZK61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 160
46
Elongation at Break, % 34
5.8 to 7.1
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 62
18
Tensile Strength: Ultimate (UTS), MPa 550
290 to 310

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Melting Completion (Liquidus), °C 1270
640
Melting Onset (Solidus), °C 1230
530
Specific Heat Capacity, J/kg-K 430
960
Thermal Conductivity, W/m-K 21
120
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
29
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
130

Otherwise Unclassified Properties

Base Metal Price, % relative 50
13
Density, g/cm3 8.7
1.9
Embodied Carbon, kg CO2/kg material 8.0
23
Embodied Energy, MJ/kg 110
160
Embodied Water, L/kg 250
940

Common Calculations

Stiffness to Weight: Axial, points 10
13
Stiffness to Weight: Bending, points 21
62
Strength to Weight: Axial, points 17
42 to 45
Strength to Weight: Bending, points 17
50 to 53
Thermal Diffusivity, mm2/s 5.5
65
Thermal Shock Resistance, points 18
17 to 18

Alloy Composition

Aluminum (Al), % 0 to 0.75
0
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 20.6 to 38
0 to 0.1
Iron (Fe), % 0 to 2.5
0
Magnesium (Mg), % 0
92.1 to 93.9
Manganese (Mn), % 0 to 4.0
0
Nickel (Ni), % 62 to 69
0 to 0.010
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.015
0
Titanium (Ti), % 0 to 1.0
0
Zinc (Zn), % 0
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3