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EN-MC32110 Magnesium vs. ASTM A369 Grade FP21

EN-MC32110 magnesium belongs to the magnesium alloys classification, while ASTM A369 grade FP21 belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, 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-MC32110 magnesium and the bottom bar is ASTM A369 grade FP21.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 60
140
Elastic (Young's, Tensile) Modulus, GPa 49
190
Elongation at Break, % 2.2
20
Fatigue Strength, MPa 80
160
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 19
74
Shear Strength, MPa 120
300
Tensile Strength: Ultimate (UTS), MPa 220
470
Tensile Strength: Yield (Proof), MPa 140
240

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Maximum Temperature: Mechanical, °C 99
470
Melting Completion (Liquidus), °C 600
1470
Melting Onset (Solidus), °C 500
1430
Specific Heat Capacity, J/kg-K 950
470
Thermal Conductivity, W/m-K 120
41
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.8

Otherwise Unclassified Properties

Base Metal Price, % relative 13
4.0
Density, g/cm3 2.1
7.8
Embodied Carbon, kg CO2/kg material 22
1.8
Embodied Energy, MJ/kg 150
23
Embodied Water, L/kg 920
61

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3
80
Resilience: Unit (Modulus of Resilience), kJ/m3 210
150
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 58
24
Strength to Weight: Axial, points 29
17
Strength to Weight: Bending, points 38
17
Thermal Diffusivity, mm2/s 58
11
Thermal Shock Resistance, points 12
14

Alloy Composition


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Aluminum (Al), % 0 to 0.2
0
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
2.7 to 3.4
Copper (Cu), % 2.4 to 3.0
0
Iron (Fe), % 0 to 0.050
94.3 to 96.2
Magnesium (Mg), % 89.3 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
0.3 to 0.6
Molybdenum (Mo), % 0
0.8 to 1.1
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.2
0 to 0.5
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 5.5 to 6.5
0
Residuals, % 0 to 0.010
0