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AM60A Magnesium vs. S44330 Stainless Steel

AM60A magnesium belongs to the magnesium alloys classification, while S44330 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 AM60A magnesium and the bottom bar is S44330 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
160
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 8.8
25
Fatigue Strength, MPa 70
160
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 18
78
Shear Strength, MPa 130
280
Tensile Strength: Ultimate (UTS), MPa 230
440
Tensile Strength: Yield (Proof), MPa 130
230

Thermal Properties

Latent Heat of Fusion, J/g 350
290
Maximum Temperature: Mechanical, °C 120
990
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 550
1390
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 62
21
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 69
3.1

Otherwise Unclassified Properties

Base Metal Price, % relative 12
13
Density, g/cm3 1.7
7.7
Embodied Carbon, kg CO2/kg material 23
2.8
Embodied Energy, MJ/kg 160
40
Embodied Water, L/kg 990
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
91
Resilience: Unit (Modulus of Resilience), kJ/m3 190
140
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 37
16
Strength to Weight: Bending, points 49
17
Thermal Diffusivity, mm2/s 37
5.7
Thermal Shock Resistance, points 14
16

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0
20 to 23
Copper (Cu), % 0 to 0.35
0.3 to 0.8
Iron (Fe), % 0
72.5 to 79.7
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0 to 1.0
Nickel (Ni), % 0 to 0.030
0
Niobium (Nb), % 0
0 to 0.8
Nitrogen (N), % 0
0 to 0.025
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0 to 0.8
Zinc (Zn), % 0 to 0.22
0