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SAE-AISI T5 Steel vs. ZE41A Magnesium

SAE-AISI T5 steel belongs to the iron alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (14, 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 SAE-AISI T5 steel and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
45
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 80
18
Tensile Strength: Ultimate (UTS), MPa 860 to 2140
210

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Melting Completion (Liquidus), °C 1810
640
Melting Onset (Solidus), °C 1750
540
Specific Heat Capacity, J/kg-K 410
970
Thermal Conductivity, W/m-K 21
110
Thermal Expansion, µm/m-K 11
27

Otherwise Unclassified Properties

Base Metal Price, % relative 60
18
Density, g/cm3 9.4
1.9
Embodied Carbon, kg CO2/kg material 11
24
Embodied Energy, MJ/kg 170
170
Embodied Water, L/kg 140
940

Common Calculations

Stiffness to Weight: Axial, points 12
13
Stiffness to Weight: Bending, points 21
63
Strength to Weight: Axial, points 25 to 63
31
Strength to Weight: Bending, points 21 to 39
41
Thermal Diffusivity, mm2/s 5.5
59
Thermal Shock Resistance, points 26 to 66
12

Alloy Composition

Carbon (C), % 0.75 to 0.85
0
Chromium (Cr), % 3.8 to 5.0
0
Cobalt (Co), % 7.0 to 9.5
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 60.6 to 68.3
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0.2 to 0.4
0 to 0.15
Molybdenum (Mo), % 0.5 to 1.3
0
Nickel (Ni), % 0 to 0.3
0 to 0.010
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0.2 to 0.4
0
Sulfur (S), % 0 to 0.030
0
Tungsten (W), % 17.5 to 19
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Vanadium (V), % 1.8 to 2.4
0
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3