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EN-MC95310 Magnesium vs. ASTM A203 Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while ASTM A203 steel belongs to the iron 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 EN-MC95310 magnesium and the bottom bar is ASTM A203 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
160 to 180
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 2.2
22 to 26
Fatigue Strength, MPa 110
210 to 280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Shear Strength, MPa 160
330 to 370
Tensile Strength: Ultimate (UTS), MPa 280
520 to 590
Tensile Strength: Yield (Proof), MPa 190
290 to 390

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 170
410
Melting Completion (Liquidus), °C 650
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 51
52
Thermal Expansion, µm/m-K 25
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.4 to 7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 50
8.5 to 8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 34
3.2 to 4.0
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 29
1.6 to 1.7
Embodied Energy, MJ/kg 260
21 to 23
Embodied Water, L/kg 900
50 to 52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 420
230 to 410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
24
Strength to Weight: Axial, points 40
18 to 21
Strength to Weight: Bending, points 49
18 to 20
Thermal Diffusivity, mm2/s 28
14
Thermal Shock Resistance, points 18
15 to 17