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AM60B Magnesium vs. EN 1.4458 Stainless Steel

AM60B magnesium belongs to the magnesium alloys classification, while EN 1.4458 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 EN 1.4458 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 62
150
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 96
150
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Tensile Strength: Ultimate (UTS), MPa 230
510
Tensile Strength: Yield (Proof), MPa 130
190

Thermal Properties

Latent Heat of Fusion, J/g 350
300
Maximum Temperature: Mechanical, °C 120
1100
Melting Completion (Liquidus), °C 620
1420
Melting Onset (Solidus), °C 540
1370
Specific Heat Capacity, J/kg-K 1000
470
Thermal Conductivity, W/m-K 61
16
Thermal Expansion, µm/m-K 26
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 72
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 12
30
Density, g/cm3 1.7
8.0
Embodied Carbon, kg CO2/kg material 23
5.4
Embodied Energy, MJ/kg 160
75
Embodied Water, L/kg 990
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
140
Resilience: Unit (Modulus of Resilience), kJ/m3 190
89
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 38
17
Strength to Weight: Bending, points 50
18
Thermal Diffusivity, mm2/s 37
4.2
Thermal Shock Resistance, points 14
12

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 0 to 0.010
0 to 2.0
Iron (Fe), % 0 to 0.0050
40.2 to 53
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0 to 0.0020
26 to 30
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Zinc (Zn), % 0 to 0.22
0