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AM50A Magnesium vs. ASTM Grade HG10 MNN Steel

AM50A magnesium belongs to the magnesium alloys classification, while ASTM grade HG10 MNN 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 AM50A magnesium and the bottom bar is ASTM grade HG10 MNN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
170
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
23
Fatigue Strength, MPa 70
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Tensile Strength: Ultimate (UTS), MPa 210
590
Tensile Strength: Yield (Proof), MPa 120
250

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Maximum Temperature: Mechanical, °C 120
990
Melting Completion (Liquidus), °C 620
1420
Melting Onset (Solidus), °C 570
1370
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 65
15
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 88
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
21
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
4.0
Embodied Energy, MJ/kg 160
58
Embodied Water, L/kg 990
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
160
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 35
21
Strength to Weight: Bending, points 47
20
Thermal Diffusivity, mm2/s 39
3.9
Thermal Shock Resistance, points 13
13

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0.070 to 0.11
Chromium (Cr), % 0
18.5 to 20.5
Copper (Cu), % 0 to 0.010
0 to 0.5
Iron (Fe), % 0 to 0.0040
57.9 to 66.5
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
3.0 to 5.0
Molybdenum (Mo), % 0
0.25 to 0.45
Nickel (Ni), % 0 to 0.0020
11.5 to 13.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.7
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0