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AZ61A Magnesium vs. AISI 414 Stainless Steel

AZ61A magnesium belongs to the magnesium alloys classification, while AISI 414 stainless steel belongs to the iron alloys. There are 30 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 AISI 414 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
17
Fatigue Strength, MPa 130
430 to 480
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 150
550 to 590
Tensile Strength: Ultimate (UTS), MPa 280
900 to 960
Tensile Strength: Yield (Proof), MPa 170
700 to 790

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
750
Melting Completion (Liquidus), °C 600
1440
Melting Onset (Solidus), °C 530
1400
Specific Heat Capacity, J/kg-K 990
480
Thermal Conductivity, W/m-K 79
25
Thermal Expansion, µm/m-K 27
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 62
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
8.0
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
2.1
Embodied Energy, MJ/kg 160
29
Embodied Water, L/kg 980
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 310
1260 to 1590
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
25
Strength to Weight: Axial, points 46
32 to 34
Strength to Weight: Bending, points 56
27 to 28
Thermal Diffusivity, mm2/s 47
6.7
Thermal Shock Resistance, points 17
33 to 35

Alloy Composition


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Aluminum (Al), % 5.5 to 7.2
0
Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
11.5 to 13.5
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.0050
81.8 to 87.3
Magnesium (Mg), % 90.3 to 93.9
0
Manganese (Mn), % 0.15 to 0.5
0 to 1.0
Nickel (Ni), % 0 to 0.0050
1.3 to 2.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0.4 to 1.5
0
Residuals, % 0 to 0.3
0