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ISO-WD43150 Magnesium vs. SAE-AISI 1330 Steel

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while SAE-AISI 1330 steel belongs to the iron alloys. There are 30 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 ISO-WD43150 magnesium and the bottom bar is SAE-AISI 1330 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 2.8
11 to 23
Fatigue Strength, MPa 100
210 to 380
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 140
330 to 430
Tensile Strength: Ultimate (UTS), MPa 250
520 to 710
Tensile Strength: Yield (Proof), MPa 150
290 to 610

Thermal Properties

Latent Heat of Fusion, J/g 350
250
Maximum Temperature: Mechanical, °C 95
400
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 590
1410
Specific Heat Capacity, J/kg-K 990
470
Thermal Conductivity, W/m-K 140
51
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 170
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
1.9
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 24
1.4
Embodied Energy, MJ/kg 160
19
Embodied Water, L/kg 970
48

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
76 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 250
230 to 990
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 41
19 to 25
Strength to Weight: Bending, points 52
18 to 23
Thermal Diffusivity, mm2/s 81
14
Thermal Shock Resistance, points 14
17 to 23

Alloy Composition

Carbon (C), % 0
0.28 to 0.33
Copper (Cu), % 0 to 0.050
0
Iron (Fe), % 0
97.3 to 98
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
1.6 to 1.9
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.1
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Residuals, % 0 to 0.3
0