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AM50A Magnesium vs. SAE-AISI H10 Steel

AM50A magnesium belongs to the magnesium alloys classification, while SAE-AISI H10 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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 AM50A magnesium and the bottom bar is SAE-AISI H10 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
74
Tensile Strength: Ultimate (UTS), MPa 210
680 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 350
270
Melting Completion (Liquidus), °C 620
1470
Melting Onset (Solidus), °C 570
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 65
38
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 88
9.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
6.5
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
3.4
Embodied Energy, MJ/kg 160
48
Embodied Water, L/kg 990
71

Common Calculations

Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 35
24 to 72
Strength to Weight: Bending, points 47
22 to 46
Thermal Diffusivity, mm2/s 39
10
Thermal Shock Resistance, points 13
22 to 66

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0.35 to 0.45
Chromium (Cr), % 0
3.0 to 3.8
Copper (Cu), % 0 to 0.010
0 to 0.25
Iron (Fe), % 0 to 0.0040
89.5 to 93.4
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0.25 to 0.7
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.0020
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.1
0.8 to 1.2
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.25 to 0.75
Zinc (Zn), % 0 to 0.22
0