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AZ61A Magnesium vs. AWS ER80S-Ni1

AZ61A magnesium belongs to the magnesium alloys classification, while AWS ER80S-Ni1 belongs to the iron alloys. There are 27 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 AZ61A magnesium and the bottom bar is AWS ER80S-Ni1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
27
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
72
Tensile Strength: Ultimate (UTS), MPa 280
630
Tensile Strength: Yield (Proof), MPa 170
530

Thermal Properties

Latent Heat of Fusion, J/g 350
260
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 530
1410
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 79
41
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 62
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.7
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
1.6
Embodied Energy, MJ/kg 160
21
Embodied Water, L/kg 980
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
160
Resilience: Unit (Modulus of Resilience), kJ/m3 310
740
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
24
Strength to Weight: Axial, points 46
22
Strength to Weight: Bending, points 56
21
Thermal Diffusivity, mm2/s 47
11
Thermal Shock Resistance, points 17
19

Alloy Composition


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Aluminum (Al), % 5.5 to 7.2
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0 to 0.050
0 to 0.35
Iron (Fe), % 0 to 0.0050
95.3 to 98.8
Magnesium (Mg), % 90.3 to 93.9
0
Manganese (Mn), % 0.15 to 0.5
0 to 1.3
Molybdenum (Mo), % 0
0 to 0.35
Nickel (Ni), % 0 to 0.0050
0.8 to 1.1
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0.4 to 0.8
Sulfur (S), % 0
0 to 0.025
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0.4 to 1.5
0
Residuals, % 0 to 0.3
0 to 0.5