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AM60B Magnesium vs. S39277 Stainless Steel

AM60B magnesium belongs to the magnesium alloys classification, while S39277 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 AM60B magnesium and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
250
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 96
480
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
80
Shear Strength, MPa 140
600
Tensile Strength: Ultimate (UTS), MPa 230
930
Tensile Strength: Yield (Proof), MPa 130
660

Thermal Properties

Latent Heat of Fusion, J/g 350
300
Maximum Temperature: Mechanical, °C 120
1100
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 61
16
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 72
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
4.2
Embodied Energy, MJ/kg 160
59
Embodied Water, L/kg 990
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
240
Resilience: Unit (Modulus of Resilience), kJ/m3 190
1070
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 38
33
Strength to Weight: Bending, points 50
27
Thermal Diffusivity, mm2/s 37
4.2
Thermal Shock Resistance, points 14
26

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0 to 0.010
1.2 to 2.0
Iron (Fe), % 0 to 0.0050
56.8 to 64.3
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0 to 0.8
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.0020
6.5 to 8.0
Nitrogen (N), % 0
0.23 to 0.33
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.1
0 to 0.8
Sulfur (S), % 0
0 to 0.0020
Tungsten (W), % 0
0.8 to 1.2
Zinc (Zn), % 0 to 0.22
0