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AM60B Magnesium vs. S44735 Stainless Steel

AM60B magnesium belongs to the magnesium alloys classification, while S44735 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, 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 S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
220
Elastic (Young's, Tensile) Modulus, GPa 45
210
Elongation at Break, % 11
21
Fatigue Strength, MPa 96
300
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
82
Shear Strength, MPa 140
390
Tensile Strength: Ultimate (UTS), MPa 230
630
Tensile Strength: Yield (Proof), MPa 130
460

Thermal Properties

Latent Heat of Fusion, J/g 350
310
Maximum Temperature: Mechanical, °C 120
1100
Melting Completion (Liquidus), °C 620
1460
Melting Onset (Solidus), °C 540
1420
Specific Heat Capacity, J/kg-K 1000
480
Thermal Expansion, µm/m-K 26
11

Otherwise Unclassified Properties

Base Metal Price, % relative 12
21
Density, g/cm3 1.7
7.7
Embodied Carbon, kg CO2/kg material 23
4.4
Embodied Energy, MJ/kg 160
61
Embodied Water, L/kg 990
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
120
Resilience: Unit (Modulus of Resilience), kJ/m3 190
520
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 71
26
Strength to Weight: Axial, points 38
23
Strength to Weight: Bending, points 50
21
Thermal Shock Resistance, points 14
20

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
60.7 to 68.4
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
3.6 to 4.2
Nickel (Ni), % 0 to 0.0020
0 to 1.0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.0
Zinc (Zn), % 0 to 0.22
0