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AM50A Magnesium vs. AISI 347 Stainless Steel

AM50A magnesium belongs to the magnesium alloys classification, while AISI 347 stainless steel belongs to the iron alloys. There are 31 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 AISI 347 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
160 to 210
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
34 to 46
Fatigue Strength, MPa 70
220 to 270
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 120
430 to 460
Tensile Strength: Ultimate (UTS), MPa 210
610 to 690
Tensile Strength: Yield (Proof), MPa 120
240 to 350

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Maximum Temperature: Mechanical, °C 120
870
Melting Completion (Liquidus), °C 620
1430
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 65
16
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 88
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
19
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
3.6
Embodied Energy, MJ/kg 160
52
Embodied Water, L/kg 990
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
190 to 220
Resilience: Unit (Modulus of Resilience), kJ/m3 150
150 to 310
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 35
22 to 25
Strength to Weight: Bending, points 47
20 to 22
Thermal Diffusivity, mm2/s 39
4.3
Thermal Shock Resistance, points 13
13 to 15

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0040
64.1 to 74
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0 to 2.0
Nickel (Ni), % 0 to 0.0020
9.0 to 13
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0