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AM60B Magnesium vs. EN 1.7720 Steel

AM60B magnesium belongs to the magnesium alloys classification, while EN 1.7720 steel belongs to the iron alloys. There are 30 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 AM60B magnesium and the bottom bar is EN 1.7720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
180
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
19
Fatigue Strength, MPa 96
230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Tensile Strength: Ultimate (UTS), MPa 230
590
Tensile Strength: Yield (Proof), MPa 130
340

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 120
410
Melting Completion (Liquidus), °C 620
1470
Melting Onset (Solidus), °C 540
1430
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 61
40
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 72
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 12
2.8
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
2.2
Embodied Energy, MJ/kg 160
30
Embodied Water, L/kg 990
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
97
Resilience: Unit (Modulus of Resilience), kJ/m3 190
300
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 38
21
Strength to Weight: Bending, points 50
20
Thermal Diffusivity, mm2/s 37
11
Thermal Shock Resistance, points 14
17

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0.1 to 0.15
Chromium (Cr), % 0
0.3 to 0.5
Copper (Cu), % 0 to 0.010
0 to 0.3
Iron (Fe), % 0 to 0.0050
96.6 to 98.6
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0.4 to 0.7
Molybdenum (Mo), % 0
0.4 to 0.6
Nickel (Ni), % 0 to 0.0020
0 to 0.4
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0 to 0.45
Sulfur (S), % 0
0 to 0.020
Vanadium (V), % 0
0.22 to 0.3
Zinc (Zn), % 0 to 0.22
0