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AM50A Magnesium vs. EN 1.7390 Steel

AM50A magnesium belongs to the magnesium alloys classification, while EN 1.7390 steel belongs to the iron alloys. There are 31 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 AM50A magnesium and the bottom bar is EN 1.7390 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
210
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
16
Fatigue Strength, MPa 70
310
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
74
Shear Strength, MPa 120
440
Tensile Strength: Ultimate (UTS), MPa 210
710
Tensile Strength: Yield (Proof), MPa 120
480

Thermal Properties

Latent Heat of Fusion, J/g 350
260
Maximum Temperature: Mechanical, °C 120
510
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 65
40
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
8.1
Electrical Conductivity: Equal Weight (Specific), % IACS 88
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
4.3
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
1.7
Embodied Energy, MJ/kg 160
23
Embodied Water, L/kg 990
69

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
100
Resilience: Unit (Modulus of Resilience), kJ/m3 150
600
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 35
25
Strength to Weight: Bending, points 47
23
Thermal Diffusivity, mm2/s 39
11
Thermal Shock Resistance, points 13
20

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0 to 0.18
Chromium (Cr), % 0
4.0 to 6.0
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0040
91.9 to 95.3
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0.3 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.22
0