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AM60B Magnesium vs. S35500 Stainless Steel

AM60B magnesium belongs to the magnesium alloys classification, while S35500 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 S35500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
14
Fatigue Strength, MPa 96
690 to 730
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Shear Strength, MPa 140
810 to 910
Tensile Strength: Ultimate (UTS), MPa 230
1330 to 1490
Tensile Strength: Yield (Proof), MPa 130
1200 to 1280

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
870
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 61
16
Thermal Expansion, µm/m-K 26
11

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
16
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
3.5
Embodied Energy, MJ/kg 160
47
Embodied Water, L/kg 990
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
180 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 190
3610 to 4100
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 38
47 to 53
Strength to Weight: Bending, points 50
34 to 37
Thermal Diffusivity, mm2/s 37
4.4
Thermal Shock Resistance, points 14
44 to 49

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0.1 to 0.15
Chromium (Cr), % 0
15 to 16
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
73.2 to 77.7
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0.5 to 1.3
Molybdenum (Mo), % 0
2.5 to 3.2
Nickel (Ni), % 0 to 0.0020
4.0 to 5.0
Niobium (Nb), % 0
0.1 to 0.5
Nitrogen (N), % 0
0.070 to 0.13
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.22
0