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EN-MC65210 Magnesium vs. SAE-AISI 1141 Steel

EN-MC65210 magnesium belongs to the magnesium alloys classification, while SAE-AISI 1141 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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-MC65210 magnesium and the bottom bar is SAE-AISI 1141 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
210 to 220
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 2.8
11 to 17
Fatigue Strength, MPa 110
270 to 430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
72
Shear Strength, MPa 150
460 to 480
Tensile Strength: Ultimate (UTS), MPa 270
740 to 810
Tensile Strength: Yield (Proof), MPa 200
400 to 700

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 170
400
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
51
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
10
Electrical Conductivity: Equal Weight (Specific), % IACS 110
12

Otherwise Unclassified Properties

Density, g/cm3 2.0
7.8
Embodied Carbon, kg CO2/kg material 27
1.4
Embodied Energy, MJ/kg 220
19

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
86 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 450
430 to 1290
Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 59
24
Strength to Weight: Axial, points 38
26 to 29
Strength to Weight: Bending, points 47
23 to 25
Thermal Diffusivity, mm2/s 58
14
Thermal Shock Resistance, points 17
24 to 26

Alloy Composition


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Carbon (C), % 0
0.37 to 0.45
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
97.7 to 98.2
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
1.4 to 1.7
Nickel (Ni), % 0 to 0.0050
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0.080 to 0.13
Unspecified Rare Earths, % 2.0 to 3.0
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0