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EN-MC65210 Magnesium vs. ASTM A572 Steel

EN-MC65210 magnesium belongs to the magnesium alloys classification, while ASTM A572 steel belongs to the iron alloys. There are 29 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 EN-MC65210 magnesium and the bottom bar is ASTM A572 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
140 to 190
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 2.8
18 to 25
Fatigue Strength, MPa 110
240 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Shear Strength, MPa 150
300 to 380
Tensile Strength: Ultimate (UTS), MPa 270
470 to 620
Tensile Strength: Yield (Proof), MPa 200
330 to 510

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
51
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
8.2 to 8.3

Otherwise Unclassified Properties

Density, g/cm3 2.0
7.8
Embodied Carbon, kg CO2/kg material 27
1.6
Embodied Energy, MJ/kg 220
22

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
100 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 450
290 to 690
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 59
24
Strength to Weight: Axial, points 38
17 to 22
Strength to Weight: Bending, points 47
17 to 21
Thermal Diffusivity, mm2/s 58
14
Thermal Shock Resistance, points 17
14 to 18