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AZ61A Magnesium vs. EN 1.4313 Stainless Steel

AZ61A magnesium belongs to the magnesium alloys classification, while EN 1.4313 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 EN 1.4313 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
12 to 17
Fatigue Strength, MPa 130
340 to 510
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 150
460 to 600
Tensile Strength: Ultimate (UTS), MPa 280
750 to 1000
Tensile Strength: Yield (Proof), MPa 170
580 to 910

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
780
Melting Completion (Liquidus), °C 600
1450
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
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 62
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
10
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
2.4
Embodied Energy, MJ/kg 160
34
Embodied Water, L/kg 980
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 310
870 to 2100
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 69
25
Strength to Weight: Axial, points 46
27 to 36
Strength to Weight: Bending, points 56
23 to 28
Thermal Diffusivity, mm2/s 47
6.7
Thermal Shock Resistance, points 17
27 to 36

Alloy Composition


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Aluminum (Al), % 5.5 to 7.2
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
12 to 14
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0 to 0.0050
78.5 to 84.2
Magnesium (Mg), % 90.3 to 93.9
0
Manganese (Mn), % 0.15 to 0.5
0 to 1.5
Molybdenum (Mo), % 0
0.3 to 0.7
Nickel (Ni), % 0 to 0.0050
3.5 to 4.5
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0.4 to 1.5
0
Residuals, % 0 to 0.3
0