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EN-MC95310 Magnesium vs. SAE-AISI 1042 Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while SAE-AISI 1042 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 1042 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
180 to 200
Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 2.2
14 to 18
Fatigue Strength, MPa 110
230 to 370
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
73
Shear Strength, MPa 160
380 to 420
Tensile Strength: Ultimate (UTS), MPa 280
620 to 700
Tensile Strength: Yield (Proof), MPa 190
340 to 580

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
52
Thermal Expansion, µm/m-K 25
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 50
8.1

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
87 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 420
320 to 900
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 61
24
Strength to Weight: Axial, points 40
22 to 25
Strength to Weight: Bending, points 49
21 to 22
Thermal Diffusivity, mm2/s 28
14
Thermal Shock Resistance, points 18
20 to 22

Alloy Composition


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Carbon (C), % 0
0.4 to 0.47
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
98.5 to 99
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