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ASTM A588 Steel vs. EN-MC32110 Magnesium

ASTM A588 steel belongs to the iron alloys classification, while EN-MC32110 magnesium belongs to the magnesium alloys. 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 ASTM A588 steel and the bottom bar is EN-MC32110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
60
Elastic (Young's, Tensile) Modulus, GPa 190
49
Elongation at Break, % 22
2.2
Fatigue Strength, MPa 270
80
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
19
Shear Strength, MPa 350
120
Tensile Strength: Ultimate (UTS), MPa 550
220
Tensile Strength: Yield (Proof), MPa 390
140

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
330
Maximum Temperature: Mechanical, °C 410
99
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1410 to 1420
500
Specific Heat Capacity, J/kg-K 470
950
Thermal Conductivity, W/m-K 43 to 44
120
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
140

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 2.5
13
Density, g/cm3 7.8
2.1
Embodied Carbon, kg CO2/kg material 1.5 to 1.6
22
Embodied Energy, MJ/kg 20 to 22
150
Embodied Water, L/kg 50 to 51
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
4.3
Resilience: Unit (Modulus of Resilience), kJ/m3 400
210
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
58
Strength to Weight: Axial, points 20
29
Strength to Weight: Bending, points 19
38
Thermal Diffusivity, mm2/s 12
58
Thermal Shock Resistance, points 16
12