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AS41A Magnesium vs. EN 1.5508 Steel

AS41A magnesium belongs to the magnesium alloys classification, while EN 1.5508 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 AS41A magnesium and the bottom bar is EN 1.5508 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
11 to 20
Fatigue Strength, MPa 100
210 to 320
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Shear Strength, MPa 130
300 to 360
Tensile Strength: Ultimate (UTS), MPa 230
420 to 1460
Tensile Strength: Yield (Proof), MPa 140
310 to 490

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 110
400
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 68
51
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 92
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.9
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 23
1.4
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 980
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
44 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 220
260 to 640
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 38
15 to 52
Strength to Weight: Bending, points 50
16 to 36
Thermal Diffusivity, mm2/s 41
14
Thermal Shock Resistance, points 14
12 to 43

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0
0.2 to 0.25
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0 to 0.060
0 to 0.25
Iron (Fe), % 0
97.9 to 99.199
Magnesium (Mg), % 92.8 to 95.8
0
Manganese (Mn), % 0.2 to 0.5
0.6 to 0.9
Nickel (Ni), % 0 to 0.030
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0.5 to 1.5
0 to 0.3
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 0 to 0.12
0