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AM60B Magnesium vs. S13800 Stainless Steel

AM60B magnesium belongs to the magnesium alloys classification, while S13800 stainless steel belongs to the iron alloys. There are 31 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 S13800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
290 to 480
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
11 to 18
Fatigue Strength, MPa 96
410 to 870
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 140
610 to 1030
Tensile Strength: Ultimate (UTS), MPa 230
980 to 1730
Tensile Strength: Yield (Proof), MPa 130
660 to 1580

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
810
Melting Completion (Liquidus), °C 620
1450
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
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 72
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 12
15
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
3.4
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 990
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
150 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 190
1090 to 5490
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 38
35 to 61
Strength to Weight: Bending, points 50
28 to 41
Thermal Diffusivity, mm2/s 37
4.3
Thermal Shock Resistance, points 14
33 to 58

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0.9 to 1.4
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
12.3 to 13.2
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
73.6 to 77.3
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0 to 0.2
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.0020
7.5 to 8.5
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0 to 0.1
0 to 0.1
Sulfur (S), % 0
0 to 0.0080
Zinc (Zn), % 0 to 0.22
0