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AM50A Magnesium vs. EN 1.4874 Stainless Steel

AM50A magnesium belongs to the magnesium alloys classification, while EN 1.4874 stainless steel belongs to the iron alloys. There are 28 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 AM50A magnesium and the bottom bar is EN 1.4874 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 58
140
Elastic (Young's, Tensile) Modulus, GPa 45
210
Elongation at Break, % 11
6.7
Fatigue Strength, MPa 70
180
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
80
Tensile Strength: Ultimate (UTS), MPa 210
480
Tensile Strength: Yield (Proof), MPa 120
360

Thermal Properties

Latent Heat of Fusion, J/g 350
300
Maximum Temperature: Mechanical, °C 120
1150
Melting Completion (Liquidus), °C 620
1450
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 1000
450
Thermal Conductivity, W/m-K 65
13
Thermal Expansion, µm/m-K 26
15

Otherwise Unclassified Properties

Base Metal Price, % relative 12
70
Density, g/cm3 1.7
8.4
Embodied Carbon, kg CO2/kg material 23
7.6
Embodied Energy, MJ/kg 160
110
Embodied Water, L/kg 990
290

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
29
Resilience: Unit (Modulus of Resilience), kJ/m3 150
310
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 71
24
Strength to Weight: Axial, points 35
16
Strength to Weight: Bending, points 47
16
Thermal Diffusivity, mm2/s 39
3.3
Thermal Shock Resistance, points 13
11

Alloy Composition

Aluminum (Al), % 4.4 to 5.4
0
Carbon (C), % 0
0.35 to 0.65
Chromium (Cr), % 0
19 to 22
Cobalt (Co), % 0
18.5 to 22
Copper (Cu), % 0 to 0.010
0
Iron (Fe), % 0 to 0.0040
23 to 38.9
Magnesium (Mg), % 93.7 to 95.3
0
Manganese (Mn), % 0.26 to 0.6
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0 to 0.0020
18 to 22
Niobium (Nb), % 0
0.75 to 1.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.22
0