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AM60B Magnesium vs. EN 1.4421 Stainless Steel

AM60B magnesium belongs to the magnesium alloys classification, while EN 1.4421 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 EN 1.4421 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
11 to 17
Fatigue Strength, MPa 96
380 to 520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Tensile Strength: Ultimate (UTS), MPa 230
880 to 1100
Tensile Strength: Yield (Proof), MPa 130
620 to 950

Thermal Properties

Latent Heat of Fusion, J/g 350
280
Maximum Temperature: Mechanical, °C 120
870
Melting Completion (Liquidus), °C 620
1440
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 1000
480
Thermal Conductivity, W/m-K 61
16
Thermal Expansion, µm/m-K 26
10

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
12
Density, g/cm3 1.7
7.8
Embodied Carbon, kg CO2/kg material 23
2.6
Embodied Energy, MJ/kg 160
36
Embodied Water, L/kg 990
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
960 to 2270
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
25
Strength to Weight: Axial, points 38
31 to 39
Strength to Weight: Bending, points 50
26 to 30
Thermal Diffusivity, mm2/s 37
4.4
Thermal Shock Resistance, points 14
31 to 39

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
15.5 to 17.5
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0050
74.4 to 80.5
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.7
Nickel (Ni), % 0 to 0.0020
4.0 to 5.5
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 0.8
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.22
0