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AM60A Magnesium vs. SAE-AISI H19 Steel

AM60A magnesium belongs to the magnesium alloys classification, while SAE-AISI H19 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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 AM60A magnesium and the bottom bar is SAE-AISI H19 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 18
75
Tensile Strength: Ultimate (UTS), MPa 230
720 to 1990

Thermal Properties

Latent Heat of Fusion, J/g 350
260
Melting Completion (Liquidus), °C 620
1540
Melting Onset (Solidus), °C 550
1490
Specific Heat Capacity, J/kg-K 1000
460
Thermal Conductivity, W/m-K 62
29
Thermal Expansion, µm/m-K 26
12

Otherwise Unclassified Properties

Base Metal Price, % relative 12
22
Density, g/cm3 1.7
8.2
Embodied Carbon, kg CO2/kg material 23
7.5
Embodied Energy, MJ/kg 160
110
Embodied Water, L/kg 990
110

Common Calculations

Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 37
24 to 68
Strength to Weight: Bending, points 49
22 to 43
Thermal Diffusivity, mm2/s 37
7.9
Thermal Shock Resistance, points 14
21 to 59

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0.32 to 0.45
Chromium (Cr), % 0
4.0 to 4.8
Cobalt (Co), % 0
4.0 to 4.5
Copper (Cu), % 0 to 0.35
0 to 0.25
Iron (Fe), % 0
81.4 to 85.5
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0.2 to 0.5
Molybdenum (Mo), % 0
0.3 to 0.55
Nickel (Ni), % 0 to 0.030
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.5
0.2 to 0.5
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
3.8 to 4.5
Vanadium (V), % 0
1.8 to 2.2
Zinc (Zn), % 0 to 0.22
0