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EN-MC65220 Magnesium vs. SAE-AISI 1065 Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while SAE-AISI 1065 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 EN-MC65220 magnesium and the bottom bar is SAE-AISI 1065 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
210 to 230
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 2.2
11 to 14
Fatigue Strength, MPa 110
270 to 340
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
72
Shear Strength, MPa 150
430 to 470
Tensile Strength: Ultimate (UTS), MPa 270
710 to 780
Tensile Strength: Yield (Proof), MPa 200
430 to 550

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 160
400
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 550
1420
Specific Heat Capacity, J/kg-K 980
470
Thermal Conductivity, W/m-K 110
51
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
11
Electrical Conductivity: Equal Weight (Specific), % IACS 120
12

Otherwise Unclassified Properties

Base Metal Price, % relative 80
1.8
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 27
1.4
Embodied Energy, MJ/kg 210
19

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
74 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 450
490 to 820
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
24
Strength to Weight: Axial, points 40
25 to 28
Strength to Weight: Bending, points 49
23 to 24
Thermal Diffusivity, mm2/s 61
14
Thermal Shock Resistance, points 17
25 to 27

Alloy Composition


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Carbon (C), % 0
0.6 to 0.7
Copper (Cu), % 0.050 to 0.1
0
Iron (Fe), % 0 to 0.010
98.3 to 98.8
Magnesium (Mg), % 93.8 to 96.8
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
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.050
Unspecified Rare Earths, % 1.5 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