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ISO-WD43150 Magnesium vs. ASTM A266 Carbon Steel

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while ASTM A266 carbon steel belongs to the iron alloys. There are 30 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 ISO-WD43150 magnesium and the bottom bar is ASTM A266 carbon steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 2.8
21 to 26
Fatigue Strength, MPa 100
170 to 200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 140
320 to 380
Tensile Strength: Ultimate (UTS), MPa 250
500 to 600
Tensile Strength: Yield (Proof), MPa 150
230 to 290

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 95
400
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 590
1420
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 140
51 to 52
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
7.1
Electrical Conductivity: Equal Weight (Specific), % IACS 170
8.1 to 8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 24
1.4
Embodied Energy, MJ/kg 160
18 to 19
Embodied Water, L/kg 970
46 to 47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
110
Resilience: Unit (Modulus of Resilience), kJ/m3 250
140 to 230
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 41
18 to 21
Strength to Weight: Bending, points 52
18 to 20
Thermal Diffusivity, mm2/s 81
14
Thermal Shock Resistance, points 14
16 to 19