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AZ61A Magnesium vs. EN 1.7383 Steel

AZ61A magnesium belongs to the magnesium alloys classification, while EN 1.7383 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 1.7383 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
20 to 23
Fatigue Strength, MPa 130
210 to 270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
74
Shear Strength, MPa 150
350 to 380
Tensile Strength: Ultimate (UTS), MPa 280
560 to 610
Tensile Strength: Yield (Proof), MPa 170
300 to 400

Thermal Properties

Latent Heat of Fusion, J/g 350
260
Maximum Temperature: Mechanical, °C 120
460
Melting Completion (Liquidus), °C 600
1470
Melting Onset (Solidus), °C 530
1430
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 79
39
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 62
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 12
3.9
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
1.8
Embodied Energy, MJ/kg 160
23
Embodied Water, L/kg 980
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
110
Resilience: Unit (Modulus of Resilience), kJ/m3 310
240 to 420
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 69
24
Strength to Weight: Axial, points 46
20 to 22
Strength to Weight: Bending, points 56
19 to 20
Thermal Diffusivity, mm2/s 47
11
Thermal Shock Resistance, points 17
16 to 18

Alloy Composition


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Aluminum (Al), % 5.5 to 7.2
0 to 0.040
Carbon (C), % 0
0.080 to 0.15
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 0 to 0.050
0 to 0.3
Iron (Fe), % 0 to 0.0050
94.3 to 96.6
Magnesium (Mg), % 90.3 to 93.9
0
Manganese (Mn), % 0.15 to 0.5
0.4 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0 to 0.0050
0 to 0.3
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0.4 to 1.5
0
Residuals, % 0 to 0.3
0