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SAE-AISI 6150 Steel vs. ZE63A Magnesium

SAE-AISI 6150 steel belongs to the iron alloys classification, while ZE63A magnesium belongs to the magnesium alloys. There are 31 material properties with values for both materials. Properties with values for just one material (3, 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 6150 steel and the bottom bar is ZE63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 350
73
Elastic (Young's, Tensile) Modulus, GPa 190
46
Elongation at Break, % 15 to 23
7.7
Fatigue Strength, MPa 300 to 750
120
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
17
Shear Strength, MPa 400 to 730
170
Tensile Strength: Ultimate (UTS), MPa 630 to 1200
300
Tensile Strength: Yield (Proof), MPa 420 to 1160
190

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 420
170
Melting Completion (Liquidus), °C 1460
510
Melting Onset (Solidus), °C 1410
390
Specific Heat Capacity, J/kg-K 470
950
Thermal Conductivity, W/m-K 46
110
Thermal Expansion, µm/m-K 12 to 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
31
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
140

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
22
Density, g/cm3 7.8
2.0
Embodied Carbon, kg CO2/kg material 2.0
24
Embodied Energy, MJ/kg 28
180
Embodied Water, L/kg 51
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130 to 180
20
Resilience: Unit (Modulus of Resilience), kJ/m3 460 to 3590
400
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 24
58
Strength to Weight: Axial, points 22 to 43
40
Strength to Weight: Bending, points 21 to 32
48
Thermal Diffusivity, mm2/s 13
57
Thermal Shock Resistance, points 20 to 38
17

Alloy Composition

Carbon (C), % 0.48 to 0.53
0
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 96.7 to 97.7
0
Magnesium (Mg), % 0
89.6 to 92
Manganese (Mn), % 0.7 to 0.9
0
Nickel (Ni), % 0
0 to 0.010
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0
Sulfur (S), % 0 to 0.040
0
Unspecified Rare Earths, % 0
2.1 to 3.0
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
5.5 to 6.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3