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ZK40A Magnesium vs. ASTM A182 Grade F24

ZK40A magnesium belongs to the magnesium alloys classification, while ASTM A182 grade F24 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 ZK40A magnesium and the bottom bar is ASTM A182 grade F24.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 4.2
23
Fatigue Strength, MPa 190
330
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
74
Shear Strength, MPa 160
420
Tensile Strength: Ultimate (UTS), MPa 280
670
Tensile Strength: Yield (Proof), MPa 260
460

Thermal Properties

Latent Heat of Fusion, J/g 340
260
Maximum Temperature: Mechanical, °C 120
460
Melting Completion (Liquidus), °C 600
1470
Melting Onset (Solidus), °C 540
1430
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
39
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
4.0
Density, g/cm3 1.8
7.8
Embodied Carbon, kg CO2/kg material 24
2.3
Embodied Energy, MJ/kg 160
33
Embodied Water, L/kg 950
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
140
Resilience: Unit (Modulus of Resilience), kJ/m3 740
570
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 65
24
Strength to Weight: Axial, points 43
24
Strength to Weight: Bending, points 53
22
Thermal Diffusivity, mm2/s 62
11
Thermal Shock Resistance, points 17
19

Alloy Composition


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Aluminum (Al), % 0
0 to 0.020
Boron (B), % 0
0.0015 to 0.0070
Carbon (C), % 0
0.050 to 0.1
Chromium (Cr), % 0
2.2 to 2.6
Iron (Fe), % 0
94.5 to 96.1
Magnesium (Mg), % 94.2 to 96.1
0
Manganese (Mn), % 0
0.3 to 0.7
Molybdenum (Mo), % 0
0.9 to 1.1
Nitrogen (N), % 0
0 to 0.12
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0.15 to 0.45
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0.060 to 0.1
Vanadium (V), % 0
0.2 to 0.3
Zinc (Zn), % 3.5 to 4.5
0
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0