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AM60B Magnesium vs. S46500 Stainless Steel

AM60B magnesium belongs to the magnesium alloys classification, while S46500 stainless steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, 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 S46500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 11
2.3 to 14
Fatigue Strength, MPa 96
550 to 890
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
75
Shear Strength, MPa 140
730 to 1120
Tensile Strength: Ultimate (UTS), MPa 230
1260 to 1930
Tensile Strength: Yield (Proof), MPa 130
1120 to 1810

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
780
Melting Completion (Liquidus), °C 620
1450
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 1000
470
Thermal Expansion, µm/m-K 26
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
15
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 23
3.6
Embodied Energy, MJ/kg 160
51
Embodied Water, L/kg 990
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
43 to 210
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 38
44 to 68
Strength to Weight: Bending, points 50
33 to 44
Thermal Shock Resistance, points 14
44 to 67

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
72.6 to 76.1
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0 to 0.25
Molybdenum (Mo), % 0
0.75 to 1.3
Nickel (Ni), % 0 to 0.0020
10.7 to 11.3
Nitrogen (N), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0 to 0.1
0 to 0.25
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
1.5 to 1.8
Zinc (Zn), % 0 to 0.22
0