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EN 1.6554 Steel vs. ZC63A Magnesium

EN 1.6554 steel belongs to the iron alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 30 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 EN 1.6554 steel and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230 to 280
60
Elastic (Young's, Tensile) Modulus, GPa 190
48
Elongation at Break, % 17 to 21
3.3
Fatigue Strength, MPa 380 to 520
94
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
19
Tensile Strength: Ultimate (UTS), MPa 780 to 930
220
Tensile Strength: Yield (Proof), MPa 550 to 790
130

Thermal Properties

Latent Heat of Fusion, J/g 250
330
Maximum Temperature: Mechanical, °C 420
98
Melting Completion (Liquidus), °C 1460
550
Melting Onset (Solidus), °C 1420
470
Specific Heat Capacity, J/kg-K 470
950
Thermal Conductivity, W/m-K 40
120
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
32
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
140

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
13
Density, g/cm3 7.9
2.1
Embodied Carbon, kg CO2/kg material 1.7
22
Embodied Energy, MJ/kg 22
150
Embodied Water, L/kg 53
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 810 to 1650
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
58
Strength to Weight: Axial, points 27 to 33
29
Strength to Weight: Bending, points 24 to 27
38
Thermal Diffusivity, mm2/s 11
58
Thermal Shock Resistance, points 23 to 27
12

Alloy Composition

Carbon (C), % 0.23 to 0.28
0
Chromium (Cr), % 0.7 to 0.9
0
Copper (Cu), % 0 to 0.3
2.4 to 3.0
Iron (Fe), % 94.6 to 97.3
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0.6 to 0.9
0.25 to 0.75
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 1.0 to 2.0
0 to 0.010
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.6
0 to 0.2
Sulfur (S), % 0 to 0.025
0
Vanadium (V), % 0 to 0.030
0
Zinc (Zn), % 0
5.5 to 6.5
Residuals, % 0
0 to 0.3