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AS41A Magnesium vs. EN 1.7376 Steel

AS41A magnesium belongs to the magnesium alloys classification, while EN 1.7376 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 1.7376 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
20
Fatigue Strength, MPa 100
320
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
75
Tensile Strength: Ultimate (UTS), MPa 230
710
Tensile Strength: Yield (Proof), MPa 140
460

Thermal Properties

Latent Heat of Fusion, J/g 370
270
Maximum Temperature: Mechanical, °C 110
600
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 570
1410
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 68
26
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
9.2
Electrical Conductivity: Equal Weight (Specific), % IACS 92
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
6.5
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 23
2.1
Embodied Energy, MJ/kg 160
29
Embodied Water, L/kg 980
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
130
Resilience: Unit (Modulus of Resilience), kJ/m3 220
560
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 72
25
Strength to Weight: Axial, points 38
25
Strength to Weight: Bending, points 50
23
Thermal Diffusivity, mm2/s 41
6.9
Thermal Shock Resistance, points 14
20

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0.12 to 0.19
Chromium (Cr), % 0
8.0 to 10
Copper (Cu), % 0 to 0.060
0 to 0.3
Iron (Fe), % 0
86.2 to 90.6
Magnesium (Mg), % 92.8 to 95.8
0
Manganese (Mn), % 0.2 to 0.5
0.35 to 0.65
Molybdenum (Mo), % 0
0.9 to 1.2
Nickel (Ni), % 0 to 0.030
0 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.5 to 1.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.12
0