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AISI 430FSe Stainless Steel vs. AM50A Magnesium

AISI 430FSe stainless steel belongs to the iron alloys classification, while AM50A magnesium belongs to the magnesium 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 AISI 430FSe stainless steel and the bottom bar is AM50A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
58
Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 23
11
Fatigue Strength, MPa 210
70
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
17
Shear Strength, MPa 340
120
Tensile Strength: Ultimate (UTS), MPa 540
210
Tensile Strength: Yield (Proof), MPa 310
120

Thermal Properties

Latent Heat of Fusion, J/g 280
350
Maximum Temperature: Mechanical, °C 870
120
Melting Completion (Liquidus), °C 1440
620
Melting Onset (Solidus), °C 1390
570
Specific Heat Capacity, J/kg-K 480
1000
Thermal Conductivity, W/m-K 25
65
Thermal Expansion, µm/m-K 10
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
16
Electrical Conductivity: Equal Weight (Specific), % IACS 3.4
88

Otherwise Unclassified Properties

Base Metal Price, % relative 8.5
12
Density, g/cm3 7.7
1.7
Embodied Carbon, kg CO2/kg material 2.1
23
Embodied Energy, MJ/kg 30
160
Embodied Water, L/kg 120
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
19
Resilience: Unit (Modulus of Resilience), kJ/m3 250
150
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
71
Strength to Weight: Axial, points 20
35
Strength to Weight: Bending, points 19
47
Thermal Diffusivity, mm2/s 6.8
39
Thermal Shock Resistance, points 19
13

Alloy Composition

Aluminum (Al), % 0
4.4 to 5.4
Carbon (C), % 0 to 0.12
0
Chromium (Cr), % 16 to 18
0
Copper (Cu), % 0
0 to 0.010
Iron (Fe), % 79.5 to 84
0 to 0.0040
Magnesium (Mg), % 0
93.7 to 95.3
Manganese (Mn), % 0 to 1.3
0.26 to 0.6
Nickel (Ni), % 0
0 to 0.0020
Phosphorus (P), % 0 to 0.060
0
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.060
0
Zinc (Zn), % 0
0 to 0.22