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ZK61A Magnesium vs. EN 1.8896 Steel

ZK61A magnesium belongs to the magnesium alloys classification, while EN 1.8896 steel belongs to the iron 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 ZK61A magnesium and the bottom bar is EN 1.8896 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
190
Elongation at Break, % 5.8 to 7.1
24
Fatigue Strength, MPa 120 to 140
280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 18
73
Shear Strength, MPa 170 to 180
330
Tensile Strength: Ultimate (UTS), MPa 290 to 310
510
Tensile Strength: Yield (Proof), MPa 180 to 200
390

Thermal Properties

Latent Heat of Fusion, J/g 330
250
Maximum Temperature: Mechanical, °C 120
400
Melting Completion (Liquidus), °C 640
1460
Melting Onset (Solidus), °C 530
1420
Specific Heat Capacity, J/kg-K 960
470
Thermal Conductivity, W/m-K 120
49
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.2
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 23
1.6
Embodied Energy, MJ/kg 160
21
Embodied Water, L/kg 940
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 19
110
Resilience: Unit (Modulus of Resilience), kJ/m3 370 to 420
400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
24
Strength to Weight: Axial, points 42 to 45
18
Strength to Weight: Bending, points 50 to 53
18
Thermal Diffusivity, mm2/s 65
13
Thermal Shock Resistance, points 17 to 18
15

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 0
0 to 0.14
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
97 to 99.98
Magnesium (Mg), % 92.1 to 93.9
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.010
0 to 0.3
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0 to 0.050
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 5.5 to 6.5
0
Zirconium (Zr), % 0.6 to 1.0
0
Residuals, % 0 to 0.3
0