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AS41B Magnesium vs. SAE-AISI 1010 Steel

AS41B magnesium belongs to the magnesium alloys classification, while SAE-AISI 1010 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 AS41B magnesium and the bottom bar is SAE-AISI 1010 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 6.0
22 to 31
Fatigue Strength, MPa 97
150 to 230
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 120
230 to 250
Tensile Strength: Ultimate (UTS), MPa 210
350 to 400
Tensile Strength: Yield (Proof), MPa 140
190 to 330

Thermal Properties

Latent Heat of Fusion, J/g 370
250
Maximum Temperature: Mechanical, °C 110
400
Melting Completion (Liquidus), °C 620
1470
Melting Onset (Solidus), °C 570
1430
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 68
47
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
12
Electrical Conductivity: Equal Weight (Specific), % IACS 92
14

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.8
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
1.4
Embodied Energy, MJ/kg 160
18
Embodied Water, L/kg 980
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
82 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 220
100 to 290
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 72
24
Strength to Weight: Axial, points 35
12 to 14
Strength to Weight: Bending, points 47
14 to 15
Thermal Diffusivity, mm2/s 41
13
Thermal Shock Resistance, points 13
11 to 13

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Carbon (C), % 0
0.080 to 0.13
Copper (Cu), % 0 to 0.020
0
Iron (Fe), % 0 to 0.0035
99.18 to 99.62
Magnesium (Mg), % 92.7 to 95.7
0
Manganese (Mn), % 0.35 to 0.7
0.3 to 0.6
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.5 to 1.5
0
Sulfur (S), % 0
0 to 0.050
Zinc (Zn), % 0 to 0.12
0