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ASTM A285 Carbon Steel vs. EN-MC65220 Magnesium

ASTM A285 carbon steel belongs to the iron alloys classification, while EN-MC65220 magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 ASTM A285 carbon steel and the bottom bar is EN-MC65220 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110 to 130
80
Elastic (Young's, Tensile) Modulus, GPa 190
44
Elongation at Break, % 30 to 34
2.2
Fatigue Strength, MPa 150 to 180
110
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
17
Shear Strength, MPa 250 to 290
150
Tensile Strength: Ultimate (UTS), MPa 380 to 450
270
Tensile Strength: Yield (Proof), MPa 190 to 230
200

Thermal Properties

Latent Heat of Fusion, J/g 250
340
Maximum Temperature: Mechanical, °C 400
160
Melting Completion (Liquidus), °C 1470
610
Melting Onset (Solidus), °C 1420 to 1430
550
Specific Heat Capacity, J/kg-K 470
980
Thermal Conductivity, W/m-K 53
110
Thermal Expansion, µm/m-K 12
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
25
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
120

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
80
Density, g/cm3 7.9
1.9
Embodied Carbon, kg CO2/kg material 1.4
27
Embodied Energy, MJ/kg 18
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
5.5
Resilience: Unit (Modulus of Resilience), kJ/m3 94 to 150
450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
62
Strength to Weight: Axial, points 13 to 16
40
Strength to Weight: Bending, points 15 to 17
49
Thermal Diffusivity, mm2/s 14
61
Thermal Shock Resistance, points 12 to 14
17