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EN-MC95310 Magnesium vs. SAE-AISI 1040 Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while SAE-AISI 1040 steel belongs to the iron alloys. There are 31 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 EN-MC95310 magnesium and the bottom bar is SAE-AISI 1040 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
13 to 20
Fatigue Strength, MPa 110
220 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Shear Strength, MPa 160
350 to 390
Tensile Strength: Ultimate (UTS), MPa 280
570 to 640
Tensile Strength: Yield (Proof), MPa 190
320 to 530

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 170
400
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
51
Thermal Expansion, µm/m-K 25
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 50
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 34
1.8
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 29
1.4
Embodied Energy, MJ/kg 260
18
Embodied Water, L/kg 900
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
79 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 420
270 to 760
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
24
Strength to Weight: Axial, points 40
20 to 23
Strength to Weight: Bending, points 49
19 to 21
Thermal Diffusivity, mm2/s 28
14
Thermal Shock Resistance, points 18
18 to 20

Alloy Composition


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Carbon (C), % 0
0.37 to 0.44
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
98.6 to 99.03
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0
Manganese (Mn), % 0 to 0.15
0.6 to 0.9
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0
Sulfur (S), % 0
0 to 0.050
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0