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EN-MC21210 Magnesium vs. SAE-AISI 1070 Steel

EN-MC21210 magnesium belongs to the magnesium alloys classification, while SAE-AISI 1070 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-MC21210 magnesium and the bottom bar is SAE-AISI 1070 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 48
190 to 230
Elastic (Young's, Tensile) Modulus, GPa 44
190
Elongation at Break, % 14
10 to 13
Fatigue Strength, MPa 70
270 to 350
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
72
Shear Strength, MPa 110
380 to 460
Tensile Strength: Ultimate (UTS), MPa 190
640 to 760
Tensile Strength: Yield (Proof), MPa 90
420 to 560

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 100
400
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 120
50
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
10
Electrical Conductivity: Equal Weight (Specific), % IACS 130
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 1.6
7.8
Embodied Carbon, kg CO2/kg material 24
1.4
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 980
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
59 to 86
Resilience: Unit (Modulus of Resilience), kJ/m3 92
470 to 850
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 32
23 to 27
Strength to Weight: Bending, points 44
21 to 24
Thermal Diffusivity, mm2/s 76
14
Thermal Shock Resistance, points 11
21 to 25

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Carbon (C), % 0
0.65 to 0.75
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
98.3 to 98.8
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0.6 to 0.9
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0